Insider Windows 11 Insider Canary 26080.1 and Dev 26080.1300 (KB5037139) or 26080.1400 (KB5037140) - March 18


UPDATE 3/20:


 Windows Blogs:

UPDATE 3/18: We are starting to roll out two servicing updates to Windows Insiders in the Dev Channel. Both these updates do not include anything new and are designed to test our servicing pipeline for Windows 11, version 24H2. Most Insiders in the Dev Channel will receive Cumulative Update Build 26080.1300 (KB5037139). However, Insiders that have Virtualization Based Security (VBS) turned on will receive Build 26080.1400 (KB5037140) and may not experience a restart upon installing the update. Arm64 devices, even with VBS turned on, will only receive Build 26080.1300 (KB5037139).



UPDATE 3/15: We are starting to roll out Cumulative Update Build 26080.1201 (KB5037135) to Windows Insiders in the Dev Channel. This update does not include anything new and is designed to test our servicing pipeline.



Hello Windows Insiders, today we are releasing Windows 11 Insider Preview Build 26080 to the Canary and Dev Channels. We are releasing ISOs for this build – they can be downloaded here.

Insiders in the Canary Channel will receive Build 26080.1 while Insiders in the Dev Channel will receive Build 26080.1100 (KB5037133) as we test delivery of a full build and a servicing update at the same time. There is no difference between the two of these as Build 26068.1100 does not include any additional code.

Two important notes:
  • If you’re experiencing an issue with Settings crashing or not loading the Windows Update settings page to download and install Build 26080 – you may have to reboot to correct the issue.
  • Insiders on Build 26080 and higher who have Dev Drives should no longer see their Dev Drives breaking when rolling back as long as you roll back to Build 26063 and higher. (Insiders in the Dev Channel will need to wait for another new build to get released to ensure rollback happens to build that has this issue fixed.)
The Canary and Dev Channels receiving the same builds is only temporary. During the times in which the Canary and Dev Channels are on the same builds (e.g. Build 26080), the window is open for Insiders in the Canary Channel to switch to the Dev Channel. At some point in the future, the Canary Channel will jump to higher build numbers and the window will be closed.

NOTE: Some features may begin rolling out to the Canary Channel first before the Dev Channel even if the two channels have the same build.

What’s new in Build 26080

Updates to Microsoft Teams in Windows 11

Starting with Windows 11, version 24H2, Teams users will get access to a preview experience of the new, unified Microsoft Teams experience on Windows. In this preview, Microsoft Teams will be available as a single application, enabling users to seamlessly switch between multiple cloud environments, tenants, and account types across personal and work. This new, unified application will soon be rolled out to commercial customers as well, through the normal update process. To add or access additional accounts, select your profile picture at the upper right corner of Teams when you sign into Teams.

Teams work user interface showing the Me control open with both work and personal account.
Teams work user interface showing the Me control open with both work and personal account.

We received consistent feedback from personal and work users: you prefer a single Teams app that allows you to easily access and switch between personal and work accounts. This update lets you use one app for all kinds of Teams accounts.

Teams personal account user interface over Teams work user interface.
Teams personal account user interface over Teams work user interface.

You can join any Teams meeting with ease. In upcoming builds, when you are joining a meeting, you can select the account you want to use. You will also be able to join a meeting without signing in.

Teams user selecting which account to use to join a meeting.
Teams user selecting which account to use to join a meeting.

Notifications have been improved, showing which Teams account they belong to. In addition, personal notifications have more details, giving clear and easy actions from the notification banner.

A Teams notification that someone is calling.
A Teams notification that someone is calling.

You can now launch personal and work accounts simultaneously with separate icons on the taskbar. We listened to users about their communication needs in various aspects of their lives and how they want to use Teams. The feedback was clear that a multi-window experience is preferred.

Other things to know:
  • This unified preview app experience is labeled “Microsoft Teams (work or school)”. The app name will be automatically updated to “Microsoft Teams” in future releases.
  • This is a preview release, and you will notice some changes from your current experience using Microsoft Teams (free) and Microsoft Teams (work or school). These changes and more updates will continue until we reach general availability. Notably in this release, Teams will launch into a separate icon for single accounts.
  • We will remove the standalone consumer app, “Microsoft Teams (free)”, in future releases.
  • If you lose access to either Teams applications through use of the Windows Insiders Program, you can access your preferred Teams application from this download page.
  • For Enterprise Admins, the ability to sign in with Microsoft accounts will be part of a normal monthly update, there is no new app to install if you have new Teams. The functionality is targeted for preview in April and general availability in May. The ability for users to sign in with Microsoft accounts will follow all sign in restriction polices as it has for all versions of Teams. Admins can learn more in Message Center (MC719659).
  • [ADDED] This preview version of Microsoft Teams is immediately available on clean installs of Windows 11 Insider Preview Build 26080 and higher.
  • [ADDED] Existing Windows Insiders need to be on Microsoft Teams version 24057.2000.2723.3544 or higher to see this capability, which is rolling out gradually.

Improvements to Copilot in Windows* now rolling out to more Windows Insiders

We have been trying out a new runtime for Copilot in Windows* that allows you to manage more settings via Copilot, including accessibility-focused settings, and use Power Automate Desktop through Copilot! We are now rolling out these Copilot in Windows improvements to more Windows Insiders in the Canary Channel (which first began rolling out on 2/20) and beginning to roll these improvements out to Windows Insiders in the Dev Channel.

More built-in capabilities via Copilot in Windows


Try asking Copilot to turn on Narrator or Live Captions, turn on battery saver, show you available networks, even empty your recycle bin or clean up your storage. Here’s the full list of things you can ask Copilot to do!

New with this update:
  • Ask for available wireless networks.
  • Ask for system or device information.
  • Ask for battery information.
  • Ask to clean storage.
  • Ask to empty recycle bin.
  • Ask to toggle battery saver.
  • Ask to show startup apps.
  • Ask for your IP address.
  • Ask for system, device, or storage information.
Try accessibility features:
  • Ask to turn on narrator.
  • Ask to open voice access.
  • Ask to turn on magnifier.
  • Ask to change text size.
  • Ask to start live captions.
  • Ask to turn on high-contrast.
  • Ask to start voice typing.
Already live, now on the new runtime:
  • Ask to toggle dark/light theme.
  • Ask to toggle Bluetooth.
  • Ask to toggle do not disturb.
  • Ask to add a device.
  • Ask to take a screenshot.
  • Ask to cast your screen to another monitor.
  • Ask to change your background image.
  • Ask to set volume, change volume, or mute/unmute volume.
  • Ask to launch an application.
  • State that certain parts of your PC aren’t working: Audio, Windows Update, Camera, Bluetooth, Printer, Network, others.
  • Ask to snap a window.
  • Ask to start a focus session.
Introducing Power Automate via Copilot in Windows

Power Automate is a low-code automation solution that is part of the Power Platform. We’re excited to introduce the Power Automate plugin in Copilot in Windows. This first release of the plugin offers automation features for Excel, PDF manipulation and file management.

To use the plugin, download or update Power Automate Desktop to the latest version from the Microsoft Store. Currently plugins are only accessible if you are signed in to Copilot in Windows with a Microsoft account.

After you have Power Automate installed and you activate the plugin in the plugins section in Copilot in Windows, you can ask for tasks such as:
  • Write an email to my team wishing everyone a happy weekend.
  • List the top 5 highest mountains in the world in an Excel file.
  • Rename all PDF files in a folder to add the word final at the end.
  • Move all word documents to another folder.
  • I need to split a PDF by the first page. Can you help?
Do you want to share your feedback on the Power Automate plugin or do you have other automation scenarios that you would like us to support? Feel free to contact us: [email protected].

[The rollout continues for these Copilot in Windows improvements to Windows Insiders in the Canary and Dev Channels today, so the experience isn’t available to all Insiders just yet.]

FEEDBACK: Because of an issue with our feedback pipeline, please do not use the in-line feedback form that opens from thumbs up/down for these actions right now, and instead file feedback about using these in Feedback Hub (WIN + F) under Desktop Environment > Copilot in Windows.

Changes and Improvements

[Copilot in Windows*]

  • We are beginning to roll-out an updated Copilot in Windows experience that adds the ability to switch between the existing “docked” behavior that attaches Copilot to the side of your desktop, and a new mode where it acts like a normal application window which you can resize and move around your screen. As part of this change, we’re also introducing some under-the-hood improvements as well. This experience is beginning to roll out to Windows Insiders in the Canary Channel As always, please report any issues you experience to us via Feedback Hub.


    Copilot in Windows undocked and shown next to Notepad like a normal application window.
    Copilot in Windows undocked and shown next to Notepad like a normal application window.

[Taskbar & System Tray]

  • You can turn on live captions more quickly by using the new quick setting. Just open quick settings from the system tray, scroll down, then select the live captions quick setting.


    The new live captions quick setting highlighted with a red box in the quick settings flyout from the system on the taskbar.
    The new live captions quick setting highlighted with a red box in the quick settings flyout from the system on the taskbar.
  • Updated the design of the progress bar under app icons to help make it easier to see. This will appear on the taskbar as well as the Start menu.

    Design of progress bar under app icons has been updated to show a thin line under the colored progress bar to make it easier to see.
    Design of progress bar under app icons has been updated to show a thin line under the colored progress bar to make it easier to see.

[File Explorer]

  • When extracting files, if there is a file name conflict you can now choose to apply your selected action (skip, replace) for all conflicts.


    New option highlighted for choosing to apply your selected action (skip, replace) for all conflicts when extracting files in File Explorer.
    New option highlighted for choosing to apply your selected action (skip, replace) for all conflicts when extracting files in File Explorer.

[Windows Update]

  • Removed the What’s New link in Windows Update history for Windows Insiders – it will only show now for retail (released) versions of Windows. To check what’s new in Insider builds, please follow this blog.

[Printing]

  • [ADDED] Building off the printer improvements first introduced with Build 26020, we have added the ability to rename your printer directly from Settings > Bluetooth & devices > Printers & scanner.

Fixes for known issues

[General]

  • IMPORTANT NOTE FOR DEV DRIVE USERS: Insiders on Build 26068 and higher who have Dev Drives should no longer see their Dev Drives breaking when rolling back as long as you roll back to Build 26063 and higher. Rolling back to earlier builds may still result in issues with Dev Drives.
  • IMPORTANT NOTE: Fixed an issue causing Windows Update in Settings to not load or crash in Build 26063. If you are still on Build 26063 and encounter this, rebooting may resolve the issue. If it doesn’t, the update should still eventually download on its own – appreciate your patience.
  • Fixed an issue for Narrator not working when setting up a device or in Advanced Startup.

[Copilot in Windows*]

  • Fixed an issue where if you turned the Copilot icon off and back on in Settings never showed it on your taskbar again.

[Taskbar & System Tray]

  • Fixed a memory leak related to showing the tooltip for the date and time in the taskbar when you had enabled additional clocks.

[File Explorer]

  • Fixed an underlying issue believed to be the cause of some Insiders finding File Explorer had started freezing and using unexpectedly high CPU in the last couple builds. Please file feedback in the Feedback Hub if you continue experiencing this after upgrading.
  • Fixed an issue where your preference for “Show extracted files when complete” when extracting files in File Explorer wasn’t persisting across upgrades.
  • Fixed a timing issue where when you start a search from Home in File Explorer, it might unexpectedly show no results the first time you tried.
  • Fixed an issue causing the Details view in File Explorer to be unexpectedly cramped in recent builds when using compact mode.
  • Made a change to help address an issue where after a DWM crash, when you opened File Explorer it could just show a blank area on top instead of rendering the area correctly.
  • Fixed an issue where the 7zip and ZIP compression options weren’t displaying correctly for Insiders with the English (United Kingdom) display language.

[Task Manager]

  • Fixed an issue which could lead to your GPU showing as -1 in Task Manager.
  • Fixed an issue where Task Manager may unexpectedly show no GPU % used (when that was not the case).
  • Fixed an issue impacting Task Manager reliability.

 
Last edited:
Failed to install 26080.1400 with error 0x80070002 on a fully supported device, System Five in my specs (listed in Other Info)....

1710801113960.png

...26080.1300 also failed on an unsupported device, my System Two, with the same error code.

1710804392962.png
 
Last edited:

My Computers

System One System Two

  • OS
    Windows 11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Acer Aspire 3 A315-23-R9VY
    CPU
    AMD Athlon Silver 3050U
    Memory
    8GB
    Graphics Card(s)
    Radeon Graphics
    Monitor(s) Displays
    laptop screen
    Screen Resolution
    1366x768 native resolution, up to 2560x1440 with Radeon Virtual Super Resolution
    Hard Drives
    1TB Samsung EVO 870 SSD (from April 2026: 250GB EVO 850)
    Internet Speed
    150 Mbps
    Browser
    Edge, Firefox
    Antivirus
    Defender
    Other Info
    fully 'Windows 11 ready' laptop. Windows 10 C: partition migrated from my old unsupported 'main machine' then upgraded to 11. A test migration ran Insider builds for 2 months. When 11 was released on 5th October 2021 it was re-imaged back to 10 and was offered the upgrade in Windows Update on 20th October. Windows Update offered the 22H2 Feature Update on 20th September 2022. It got the 23H2 Feature Update on 4th November 2023 through Windows Update, 24H2 on 3rd October 2024 through Windows Update by setting the Target Release Version for 24H2, and 25H2 on 30th September 2025 through Windows Update by setting the Target Release Version for 25H2.

    UPDATE - 11 April 2026: due to mechanical deterioration this PC has been retired from active duty. The OS with all software and files has been migrated to my System Seven below to carry on as my general purpose 'main machine'.

    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB NVMe ssd, supported device running Windows 11 Pro.

    My SYSTEM FOUR is a 2-in-1 convertible Lenovo Yoga 11e 20DA, Celeron N2930, 8GB RAM, 256GB ssd. Unsupported device: currently running Win10 Pro, plus Win11 Pro RTM and Insider Dev, Beta, and RP 24H2 as native boot vhdx.

    My SYSTEM FIVE is a Dell Latitude 3190 2-in-1, Pentium Silver N5030, 8GB RAM, 1TB NVMe ssd, supported device running Windows 11 Pro, plus Insider Beta, Dev, and Canary builds (and a few others) as a native boot .vhdx.

    My SYSTEM SIX is a Dell Latitude 5550, Core Ultra 7 165H, 64GB RAM, 1TB NVMe SSD, supported device, Windows 11 Pro 24H2, Hyper-V host machine. Updated to 25H2 on 30th September 2025.

    My SYSTEM SEVEN is a Lenovo Thinkpad T580, Intel Core i7-8650U, 16GB RAM, 512GB NVMe SSD + 2nd 512GB NVMe SSD, a supported device for Windows 11. This is my current general purpose 'main machine'. The installed Windows 11 Home from my System One has been migrated to this machine.
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Dell Latitude E4310
    CPU
    Intel® Core™ i5-520M
    Motherboard
    0T6M8G
    Memory
    8GB
    Graphics card(s)
    (integrated graphics) Intel HD Graphics
    Screen Resolution
    1366x768
    Hard Drives
    500GB Crucial MX500 SSD
    Browser
    Firefox, Edge
    Antivirus
    Defender
    Other Info
    unsupported machine: Legacy bios, MBR, TPM 1.2, upgraded from W10 to W11 using W10/W11 hybrid install media workaround. In-place upgrade to 22H2 using ISO and a workaround. Feature Update to 23H2 by manually installing the Enablement Package. In-place upgrade to 24H2 using hybrid 23H2/24H2 install media. Upgraded to 25H2 by Enablement Package. Also running Insider Dev, and Canary builds and Windows 10 as native boot .vhdx.

    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB NVMe ssd, supported device running Windows 11 Pro.

    My SYSTEM FOUR is a 2-in-1 convertible Lenovo Yoga 11e 20DA, Celeron N2930, 8GB RAM, 256GB ssd. Unsupported device: currently running Win10 Pro, plus Win11 Pro RTM and Insider Dev, Beta, and RP 24H2 as native boot vhdx.

    My SYSTEM FIVE is a Dell Latitude 3190 2-in-1, Pentium Silver N5030, 8GB RAM, 1TB NVMe ssd, supported device running Windows 11 Pro, plus Insider Beta, Dev, and Canary builds (and a few others) as a native boot .vhdx.

    My SYSTEM SIX is a Dell Latitude 5550, Core Ultra 7 165H, 64GB RAM, 1TB NVMe SSD, supported device, Windows 11 Pro 24H2, Hyper-V host machine. Updated to 25H2 on 30th September 2025.

    My SYSTEM SEVEN is a Lenovo Thinkpad T580, Intel Core i7-8650U, 16GB RAM, 512GB NVMe SSD + 2nd 512GB NVMe SSD, a supported device for Windows 11. This is my current general purpose 'main machine'. The installed Windows 11 Home from my System One has been migrated to this machine.
Failed to install 26080.1400 with error 0x80070002 on a fully supported device, System Five in my specs (listed in Other Info)....

View attachment 90710

...26080.1300 also failed on an unsupported device, my System Two, with the same error code.

View attachment 90719
Reported by other users in MS forum too.
Another MS bug on their pipeline test. 😂😂😝
 

My Computer

System One

  • OS
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell XPS 8930
    CPU
    Intel I9-9900K
    Memory
    64GB
    Graphics Card(s)
    NVIDIA RTX 2060
    Sound Card
    NVIDIA High Definition Audio
    Monitor(s) Displays
    4k Samsung
    Screen Resolution
    3840 x 2160
    Hard Drives
    512GB NVMe, ADATA SU 800, 2TB HDD
Better call Roto-Rooter!!! :cool:
Must be some mess left over by .1201 update that could not remove the Windows Update Cleanup file of 2.68 GB.
I restored a backup of 26080.1100 and the W.U. to 26080.1400 worked fine. 😵‍💫😂🤷‍♂️

1710806397575.png

Same workaround on 2 machines that were getting the same error.
 

My Computer

System One

  • OS
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell XPS 8930
    CPU
    Intel I9-9900K
    Memory
    64GB
    Graphics Card(s)
    NVIDIA RTX 2060
    Sound Card
    NVIDIA High Definition Audio
    Monitor(s) Displays
    4k Samsung
    Screen Resolution
    3840 x 2160
    Hard Drives
    512GB NVMe, ADATA SU 800, 2TB HDD
Must be some mess left over by .1201 update that could not remove the Windows Update Cleanup file of 2.68 GB.
I restored a backup of 26080.1100 and the W.U. to 26080.1400 worked fine. 😵‍💫😂🤷‍♂️

View attachment 90725

Same workaround on 2 machines that were getting the same error.
Wow, amazing. Congratulations!
 

My Computers

System One System Two

  • OS
    windows 10 & 11
    Computer type
    PC/Desktop
    Manufacturer/Model
    iBuyPower (special build)
    CPU
    AMD Ryzen 7X
    Motherboard
    Asus Prime x370 Pro
    Memory
    64Gb
    Graphics Card(s)
    Radeon RX 480 8Gb
    Monitor(s) Displays
    Samsung UHD 27 inch
    Screen Resolution
    UHD
    Hard Drives
    3 Samsung 1 TB SSD each; 1 Samsung PCIe M.2 at 2 TB
  • Operating System
    Windows 11 pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    IBuyPower
    CPU
    AMD 9 5900X
    Motherboard
    Asus x570 ROG Crosshair VIII Dark Hero WI-FI 6E ARGB
    Memory
    32 Gb
    Graphics card(s)
    Nvidia GeForce RTX 3080 Ti 12 GB GDDR6X
    Sound Card
    3D PREMIUM surround sound onboard
    Monitor(s) Displays
    Samsung 32 inch UHD curved monitor
    Screen Resolution
    UHD
    Hard Drives
    Samsung 980 pro 2 tb gen 4 NVMe ssd
    PSU
    850 watt consair RM850X
    Case
    Lian Li LANCOOL ONE tempered glass RGB gaming case
    Cooling
    DEEPCOOL GAMERSTORM RGB 240 mm CASTLE 240EX liquid cooler
    Keyboard
    Ares m.2 gaming keyboard
    Mouse
    Ares m.2 gaming optical mouse
    Internet Speed
    450
    Browser
    Firefox / Edge
    Antivirus
    Windows defender
    Other Info
    With all this gaming rig I am not a gamer!
They still have the same pipeline cleanup issue after updating to 26080.1400, cannot get rid of this 2.68 GB. 🤣🤣😵‍💫😝🤷‍♂️

1710813253697.png
 

My Computer

System One

  • OS
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell XPS 8930
    CPU
    Intel I9-9900K
    Memory
    64GB
    Graphics Card(s)
    NVIDIA RTX 2060
    Sound Card
    NVIDIA High Definition Audio
    Monitor(s) Displays
    4k Samsung
    Screen Resolution
    3840 x 2160
    Hard Drives
    512GB NVMe, ADATA SU 800, 2TB HDD
Wow, amazing. Congratulations!
I had a 3rd machine to update, and I tried the KB5037140.msu from uupdump but got a message stating it could not be applied.
So, I decided to restore the older backup. In this machine I did not have a backup of Dev 26080.1100, so I restored a Canary 26080.1 and then switched to Dev channel and let Window Update bring it up to 26080.1400.
That worked fine too.
I only noticed a strange behavior during downloading it kept going up and down to different % of downloading and eventually started installng and completed without error.
Up and running at 26080.1400.
Crazy MS pipeline testing.
Still cannot get rid of 2.68 GB Windows Update Cleanup file, like in previous 26080.1201. 😂😵‍💫🤷‍♂️
 

My Computer

System One

  • OS
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell XPS 8930
    CPU
    Intel I9-9900K
    Memory
    64GB
    Graphics Card(s)
    NVIDIA RTX 2060
    Sound Card
    NVIDIA High Definition Audio
    Monitor(s) Displays
    4k Samsung
    Screen Resolution
    3840 x 2160
    Hard Drives
    512GB NVMe, ADATA SU 800, 2TB HDD
Failed at download, got as far as 7%. oscillated between 6 and 8% and then
1710824933462.png
 

My Computer

System One

  • OS
    W11 Pro and Insider Dev
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home brewed
    CPU
    AMD Ryzen 9 7900x
    Motherboard
    ASROCK b650 PRO RS
    Memory
    2x16GB Kingston 6000MHz, Cl 32 @ 6200MHz Cl30
    Graphics Card(s)
    Gigabyte Rx 6600XT Gaming OC 8G Pro
    Sound Card
    MB, Realtek Ac1220p
    Monitor(s) Displays
    3 x 27"
    Screen Resolution
    1080p
    Hard Drives
    Kingston KC3000. 1TBSamsung 970 evo Plus 500GB, Crucial P1 NVMe 1TB, Lexar NVMe 2 TB, Silicon Power M.2 SATA 500GB
    PSU
    Seasonic 750W
    Case
    Custom Raidmax
    Cooling
    Arctic Liquid Freezer III 360mm
    Internet Speed
    20/19 mbps
Failed at download, got as far as 7%. oscillated between 6 and 8% and then
View attachment 90745
Join the club!
The only way I could get around that error on 3 machines was by updating from 26080.1100 to 26080.1400 and skipping 26080.1201.
On a fourth machine I did not have a backup of 26080.1100, so I updated from Canary 26080.1 to 26080.1400 after switching from Canary to Dev. 😵‍💫😂😂

I tried the manual install of the Windows11.0-KB5037140-x64.msu but it failed with the message below:

1710830870397.png
 

My Computer

System One

  • OS
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell XPS 8930
    CPU
    Intel I9-9900K
    Memory
    64GB
    Graphics Card(s)
    NVIDIA RTX 2060
    Sound Card
    NVIDIA High Definition Audio
    Monitor(s) Displays
    4k Samsung
    Screen Resolution
    3840 x 2160
    Hard Drives
    512GB NVMe, ADATA SU 800, 2TB HDD
Join the club!
The only way I could get around that error on 3 machines was by updating from 26080.1100 to 26080.1400 and skipping 26080.1201.
On a fourth machine I did not have a backup of 26080.1100, so I updated from Canary 26080.1 to 26080.1400 after switching from Canary to Dev. 😵‍💫😂😂

I tried the manual install of the Windows11.0-KB5037140-x64.msu but it failed with the message below:

View attachment 90752
Presently downloading .ISO to try with it. Even that stalled few times.
 

My Computer

System One

  • OS
    W11 Pro and Insider Dev
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home brewed
    CPU
    AMD Ryzen 9 7900x
    Motherboard
    ASROCK b650 PRO RS
    Memory
    2x16GB Kingston 6000MHz, Cl 32 @ 6200MHz Cl30
    Graphics Card(s)
    Gigabyte Rx 6600XT Gaming OC 8G Pro
    Sound Card
    MB, Realtek Ac1220p
    Monitor(s) Displays
    3 x 27"
    Screen Resolution
    1080p
    Hard Drives
    Kingston KC3000. 1TBSamsung 970 evo Plus 500GB, Crucial P1 NVMe 1TB, Lexar NVMe 2 TB, Silicon Power M.2 SATA 500GB
    PSU
    Seasonic 750W
    Case
    Custom Raidmax
    Cooling
    Arctic Liquid Freezer III 360mm
    Internet Speed
    20/19 mbps
Presently downloading .ISO to try with it. Even that stalled few times.
I tried the ISO and an update/repair in place and got to 26080.1, then W.U. to 26080.1400 failed yet with another error. 😂😝
Please upvote the FBH report:

 

My Computer

System One

  • OS
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell XPS 8930
    CPU
    Intel I9-9900K
    Memory
    64GB
    Graphics Card(s)
    NVIDIA RTX 2060
    Sound Card
    NVIDIA High Definition Audio
    Monitor(s) Displays
    4k Samsung
    Screen Resolution
    3840 x 2160
    Hard Drives
    512GB NVMe, ADATA SU 800, 2TB HDD
Well, using ISO is a bust too
1710845966798.png
 

My Computer

System One

  • OS
    W11 Pro and Insider Dev
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home brewed
    CPU
    AMD Ryzen 9 7900x
    Motherboard
    ASROCK b650 PRO RS
    Memory
    2x16GB Kingston 6000MHz, Cl 32 @ 6200MHz Cl30
    Graphics Card(s)
    Gigabyte Rx 6600XT Gaming OC 8G Pro
    Sound Card
    MB, Realtek Ac1220p
    Monitor(s) Displays
    3 x 27"
    Screen Resolution
    1080p
    Hard Drives
    Kingston KC3000. 1TBSamsung 970 evo Plus 500GB, Crucial P1 NVMe 1TB, Lexar NVMe 2 TB, Silicon Power M.2 SATA 500GB
    PSU
    Seasonic 750W
    Case
    Custom Raidmax
    Cooling
    Arctic Liquid Freezer III 360mm
    Internet Speed
    20/19 mbps
when will be the next downgrade port, I will switch to beta, these dev and canary builds are simply, horror!!!
 

My Computer

System One

  • OS
    Win11Pro Dev 25H2 26220.6972
    Computer type
    PC/Desktop
    Screen Resolution
    4k
    Browser
    Microsoft Edge Beta
    Antivirus
    Eset Smart Security Premium
when will be the next downgrade port, I will switch to beta, these dev and canary builds are simply, horror!!!
My Dev is doing alright, this is rare occurrence when update failed.
 

My Computer

System One

  • OS
    W11 Pro and Insider Dev
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home brewed
    CPU
    AMD Ryzen 9 7900x
    Motherboard
    ASROCK b650 PRO RS
    Memory
    2x16GB Kingston 6000MHz, Cl 32 @ 6200MHz Cl30
    Graphics Card(s)
    Gigabyte Rx 6600XT Gaming OC 8G Pro
    Sound Card
    MB, Realtek Ac1220p
    Monitor(s) Displays
    3 x 27"
    Screen Resolution
    1080p
    Hard Drives
    Kingston KC3000. 1TBSamsung 970 evo Plus 500GB, Crucial P1 NVMe 1TB, Lexar NVMe 2 TB, Silicon Power M.2 SATA 500GB
    PSU
    Seasonic 750W
    Case
    Custom Raidmax
    Cooling
    Arctic Liquid Freezer III 360mm
    Internet Speed
    20/19 mbps
in advanced option Screenshot (1).png
 

My Computer

System One

  • OS
    Win11Pro Dev 25H2 26220.6972
    Computer type
    PC/Desktop
    Screen Resolution
    4k
    Browser
    Microsoft Edge Beta
    Antivirus
    Eset Smart Security Premium

My Computers

System One System Two

  • OS
    Windows 11 build 26200.7296 / WSL 2 running Ubuntu
    Computer type
    Laptop
    Manufacturer/Model
    Dell Inspiron 14 5430
    CPU
    Intel i7-1355U
    Motherboard
    Dell 0GMW80
    Memory
    16GB
    Graphics Card(s)
    Intel Iris XE
    Sound Card
    Realtek
    Monitor(s) Displays
    Dell 14", LG 32" Curved Wide screen monitor and LG Ultrawide 26"
    Screen Resolution
    1920 x 1200 @ 60Hz, 1920 x 1080 @ 100Hz and 2560 x 1080 @ 60Hz
    Hard Drives
    Samsung 990 Pro 1TB NVME Gen 4 M.2 SSD
    PSU
    Dell
    Case
    Dell
    Cooling
    Dell
    Keyboard
    Dell KM3322W
    Mouse
    Dell Trackpad or Dell KM3322W
    Internet Speed
    900mb down / 400mb up FTTP
    Browser
    Edge 142.0.3595.90
    Antivirus
    Windows Defender
    Other Info
    Windows 365
    1TB OneDrive
    Outlook Classic
    Visual Studio Code running in WSL
    Python 3.14
    Samsung Magician
    Garmin Express
    Dell TB16 Thunderbolt dock
    WSL
    WEI Score: 8.3
  • Operating System
    Windows 11
    Computer type
    Tablet
    Manufacturer/Model
    Microsoft Surface Pro 7
    CPU
    Core i5 - 1035G4
    Motherboard
    Microsoft
    Memory
    8GB
    Graphics card(s)
    Intel Iris Plus
    Monitor(s) Displays
    Surface touch
    Screen Resolution
    2736 x 1824
    Hard Drives
    128GB
    PSU
    Microsoft
    Case
    Microsoft Keyboard
    Cooling
    None
    Keyboard
    Microsoft Surface Keyboard
    Mouse
    Microsoft Arc Intellimouse
    Internet Speed
    900mb / 400mb FTTP
    Browser
    Edge
    Antivirus
    Windows Defender

My Computers

System One System Two

  • OS
    Windows 11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Acer Aspire 3 A315-23-R9VY
    CPU
    AMD Athlon Silver 3050U
    Memory
    8GB
    Graphics Card(s)
    Radeon Graphics
    Monitor(s) Displays
    laptop screen
    Screen Resolution
    1366x768 native resolution, up to 2560x1440 with Radeon Virtual Super Resolution
    Hard Drives
    1TB Samsung EVO 870 SSD (from April 2026: 250GB EVO 850)
    Internet Speed
    150 Mbps
    Browser
    Edge, Firefox
    Antivirus
    Defender
    Other Info
    fully 'Windows 11 ready' laptop. Windows 10 C: partition migrated from my old unsupported 'main machine' then upgraded to 11. A test migration ran Insider builds for 2 months. When 11 was released on 5th October 2021 it was re-imaged back to 10 and was offered the upgrade in Windows Update on 20th October. Windows Update offered the 22H2 Feature Update on 20th September 2022. It got the 23H2 Feature Update on 4th November 2023 through Windows Update, 24H2 on 3rd October 2024 through Windows Update by setting the Target Release Version for 24H2, and 25H2 on 30th September 2025 through Windows Update by setting the Target Release Version for 25H2.

    UPDATE - 11 April 2026: due to mechanical deterioration this PC has been retired from active duty. The OS with all software and files has been migrated to my System Seven below to carry on as my general purpose 'main machine'.

    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB NVMe ssd, supported device running Windows 11 Pro.

    My SYSTEM FOUR is a 2-in-1 convertible Lenovo Yoga 11e 20DA, Celeron N2930, 8GB RAM, 256GB ssd. Unsupported device: currently running Win10 Pro, plus Win11 Pro RTM and Insider Dev, Beta, and RP 24H2 as native boot vhdx.

    My SYSTEM FIVE is a Dell Latitude 3190 2-in-1, Pentium Silver N5030, 8GB RAM, 1TB NVMe ssd, supported device running Windows 11 Pro, plus Insider Beta, Dev, and Canary builds (and a few others) as a native boot .vhdx.

    My SYSTEM SIX is a Dell Latitude 5550, Core Ultra 7 165H, 64GB RAM, 1TB NVMe SSD, supported device, Windows 11 Pro 24H2, Hyper-V host machine. Updated to 25H2 on 30th September 2025.

    My SYSTEM SEVEN is a Lenovo Thinkpad T580, Intel Core i7-8650U, 16GB RAM, 512GB NVMe SSD + 2nd 512GB NVMe SSD, a supported device for Windows 11. This is my current general purpose 'main machine'. The installed Windows 11 Home from my System One has been migrated to this machine.
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Dell Latitude E4310
    CPU
    Intel® Core™ i5-520M
    Motherboard
    0T6M8G
    Memory
    8GB
    Graphics card(s)
    (integrated graphics) Intel HD Graphics
    Screen Resolution
    1366x768
    Hard Drives
    500GB Crucial MX500 SSD
    Browser
    Firefox, Edge
    Antivirus
    Defender
    Other Info
    unsupported machine: Legacy bios, MBR, TPM 1.2, upgraded from W10 to W11 using W10/W11 hybrid install media workaround. In-place upgrade to 22H2 using ISO and a workaround. Feature Update to 23H2 by manually installing the Enablement Package. In-place upgrade to 24H2 using hybrid 23H2/24H2 install media. Upgraded to 25H2 by Enablement Package. Also running Insider Dev, and Canary builds and Windows 10 as native boot .vhdx.

    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB NVMe ssd, supported device running Windows 11 Pro.

    My SYSTEM FOUR is a 2-in-1 convertible Lenovo Yoga 11e 20DA, Celeron N2930, 8GB RAM, 256GB ssd. Unsupported device: currently running Win10 Pro, plus Win11 Pro RTM and Insider Dev, Beta, and RP 24H2 as native boot vhdx.

    My SYSTEM FIVE is a Dell Latitude 3190 2-in-1, Pentium Silver N5030, 8GB RAM, 1TB NVMe ssd, supported device running Windows 11 Pro, plus Insider Beta, Dev, and Canary builds (and a few others) as a native boot .vhdx.

    My SYSTEM SIX is a Dell Latitude 5550, Core Ultra 7 165H, 64GB RAM, 1TB NVMe SSD, supported device, Windows 11 Pro 24H2, Hyper-V host machine. Updated to 25H2 on 30th September 2025.

    My SYSTEM SEVEN is a Lenovo Thinkpad T580, Intel Core i7-8650U, 16GB RAM, 512GB NVMe SSD + 2nd 512GB NVMe SSD, a supported device for Windows 11. This is my current general purpose 'main machine'. The installed Windows 11 Home from my System One has been migrated to this machine.
Presumably 'why are all but one of the options greyed out?'
No idea, they're all available in my Dev and Canary builds.
All available here too. 😎
1710873975713.png
 

My Computer

System One

  • OS
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell XPS 8930
    CPU
    Intel I9-9900K
    Memory
    64GB
    Graphics Card(s)
    NVIDIA RTX 2060
    Sound Card
    NVIDIA High Definition Audio
    Monitor(s) Displays
    4k Samsung
    Screen Resolution
    3840 x 2160
    Hard Drives
    512GB NVMe, ADATA SU 800, 2TB HDD
I couldn't install the update 26080.1300. I got error 0x80070002. It stuck at 6% downloading.
 

My Computer

System One

  • OS
    26200.8037
    Computer type
    PC/Desktop
    CPU
    i5-11400F
    Motherboard
    Gigabyte
    Memory
    32GB
    Graphics Card(s)
    Geforce GT-1030
    Keyboard
    Logitech K400
    Mouse
    Logitech M720
    Internet Speed
    600 Mb
    Browser
    Edge
I couldn't install the update 26080.1300. I got error 0x80070002. It stuck at 6% downloading.
Join the club, I had that too (now seen on three different machines). fg2001gf11F thinks that it was something in the 26080.1201 update that broke it for later updates.....

Join the club!
The only way I could get around that error on 3 machines was by updating from 26080.1100 to 26080.1400 and skipping 26080.1201.
On a fourth machine I did not have a backup of 26080.1100, so I updated from Canary 26080.1 to 26080.1400 after switching from Canary to Dev. 😵‍💫😂😂
...I too had to restore each of my machines to an earlier build before I could get the1400/1300 update to install.
 

My Computers

System One System Two

  • OS
    Windows 11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Acer Aspire 3 A315-23-R9VY
    CPU
    AMD Athlon Silver 3050U
    Memory
    8GB
    Graphics Card(s)
    Radeon Graphics
    Monitor(s) Displays
    laptop screen
    Screen Resolution
    1366x768 native resolution, up to 2560x1440 with Radeon Virtual Super Resolution
    Hard Drives
    1TB Samsung EVO 870 SSD (from April 2026: 250GB EVO 850)
    Internet Speed
    150 Mbps
    Browser
    Edge, Firefox
    Antivirus
    Defender
    Other Info
    fully 'Windows 11 ready' laptop. Windows 10 C: partition migrated from my old unsupported 'main machine' then upgraded to 11. A test migration ran Insider builds for 2 months. When 11 was released on 5th October 2021 it was re-imaged back to 10 and was offered the upgrade in Windows Update on 20th October. Windows Update offered the 22H2 Feature Update on 20th September 2022. It got the 23H2 Feature Update on 4th November 2023 through Windows Update, 24H2 on 3rd October 2024 through Windows Update by setting the Target Release Version for 24H2, and 25H2 on 30th September 2025 through Windows Update by setting the Target Release Version for 25H2.

    UPDATE - 11 April 2026: due to mechanical deterioration this PC has been retired from active duty. The OS with all software and files has been migrated to my System Seven below to carry on as my general purpose 'main machine'.

    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB NVMe ssd, supported device running Windows 11 Pro.

    My SYSTEM FOUR is a 2-in-1 convertible Lenovo Yoga 11e 20DA, Celeron N2930, 8GB RAM, 256GB ssd. Unsupported device: currently running Win10 Pro, plus Win11 Pro RTM and Insider Dev, Beta, and RP 24H2 as native boot vhdx.

    My SYSTEM FIVE is a Dell Latitude 3190 2-in-1, Pentium Silver N5030, 8GB RAM, 1TB NVMe ssd, supported device running Windows 11 Pro, plus Insider Beta, Dev, and Canary builds (and a few others) as a native boot .vhdx.

    My SYSTEM SIX is a Dell Latitude 5550, Core Ultra 7 165H, 64GB RAM, 1TB NVMe SSD, supported device, Windows 11 Pro 24H2, Hyper-V host machine. Updated to 25H2 on 30th September 2025.

    My SYSTEM SEVEN is a Lenovo Thinkpad T580, Intel Core i7-8650U, 16GB RAM, 512GB NVMe SSD + 2nd 512GB NVMe SSD, a supported device for Windows 11. This is my current general purpose 'main machine'. The installed Windows 11 Home from my System One has been migrated to this machine.
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Dell Latitude E4310
    CPU
    Intel® Core™ i5-520M
    Motherboard
    0T6M8G
    Memory
    8GB
    Graphics card(s)
    (integrated graphics) Intel HD Graphics
    Screen Resolution
    1366x768
    Hard Drives
    500GB Crucial MX500 SSD
    Browser
    Firefox, Edge
    Antivirus
    Defender
    Other Info
    unsupported machine: Legacy bios, MBR, TPM 1.2, upgraded from W10 to W11 using W10/W11 hybrid install media workaround. In-place upgrade to 22H2 using ISO and a workaround. Feature Update to 23H2 by manually installing the Enablement Package. In-place upgrade to 24H2 using hybrid 23H2/24H2 install media. Upgraded to 25H2 by Enablement Package. Also running Insider Dev, and Canary builds and Windows 10 as native boot .vhdx.

    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB NVMe ssd, supported device running Windows 11 Pro.

    My SYSTEM FOUR is a 2-in-1 convertible Lenovo Yoga 11e 20DA, Celeron N2930, 8GB RAM, 256GB ssd. Unsupported device: currently running Win10 Pro, plus Win11 Pro RTM and Insider Dev, Beta, and RP 24H2 as native boot vhdx.

    My SYSTEM FIVE is a Dell Latitude 3190 2-in-1, Pentium Silver N5030, 8GB RAM, 1TB NVMe ssd, supported device running Windows 11 Pro, plus Insider Beta, Dev, and Canary builds (and a few others) as a native boot .vhdx.

    My SYSTEM SIX is a Dell Latitude 5550, Core Ultra 7 165H, 64GB RAM, 1TB NVMe SSD, supported device, Windows 11 Pro 24H2, Hyper-V host machine. Updated to 25H2 on 30th September 2025.

    My SYSTEM SEVEN is a Lenovo Thinkpad T580, Intel Core i7-8650U, 16GB RAM, 512GB NVMe SSD + 2nd 512GB NVMe SSD, a supported device for Windows 11. This is my current general purpose 'main machine'. The installed Windows 11 Home from my System One has been migrated to this machine.
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