Insider KB5065426 Windows 11 Insider Release Preview build 26200.6584 (25H2) - Sep. 9


UPDATE 9/12:


 Microsoft Support:

Hello Windows Insiders!

Today, we are making this year’s annual feature update Windows 11, version 25H2 (Build 26200.5074) available in the Release Preview Channel for customers to preview ahead of general availability later this calendar year.

Windows 11, version 25H2 will be delivered as an enablement package (eKB). This means that Windows 11, version 24H2 and version 25H2 use a shared servicing branch. It also means that they also share the same new features and enhancements delivered through our continuous innovation efforts. Windows 11, version 25H2 also includes some feature removals such as PowerShell 2.0 and Windows Management Instrumentation command-line (WMIC). And for our commercial customers, Windows 11, version 25H2 includes the ability for IT admins to remove select pre-installed Microsoft Store apps via Group Policy/MDM CSP on Enterprise/EDU devices. For more details on Windows 11, version 25H2, see this blog post.

Windows 11, version 25H2 shown as available as an optional update highlighted in a red box.
Windows 11, version 25H2 shown as available as an optional update highlighted in a red box.

Windows Insiders in the Release Preview Channel can install Windows 11, version 25H2 via our “seeker” experience in Windows Update. This means if you are an Insider currently in the Release Preview Channel on a PC that meets the Windows 11 hardware requirements, you can go to Settings and Windows Update and choose to download and install Windows 11, version 25H2 if you want. Once you update your PC to Windows 11, version 25H2, you will continue to automatically receive new servicing updates through Windows Update (the typical monthly update process). For instructions on how to join the Windows Insider Program and join your PC to the Release Preview Channel, click here.

Commercial* customers enrolled in the Windows Insider Program for Business can begin validating Windows 11, version 25H2 on PCs in their organizations. For these customers, the Windows 11, version 25H2 is available through Windows Update for Business (WUfB) and Windows Server Update Service (WSUS). Azure Marketplace will be available later today. You can learn more about deploying pre-release feature updates using these deployment methods here. Should any issues arise, IT admins in organizations deploying Release Preview updates can request Microsoft Support.

And finally – ISOs will be available for download for Windows 11, version 25H2 via the Windows Insider ISO download page next week. [UPDATE 9/10] The ISOs for Windows 11, version 25H2 are now available for download.

Thanks,
Windows Insider Program Team

*We consider a device a commercial device if it is not running the Windows 11 Home edition AND is being managed by an IT administrator (whether via Microsoft Endpoint Manager or other management solution) or has a volume license key or commercial ID or is joined to a domain.


 Source:



Check Windows Updates



 25H2 Enablement Package MSU Download:

For 64-bit Windows 11
Windows11.0-KB5054156-x64 (ZIP 163KB)

Download

OR

For ARM64 Windows 11
Windows11.0-KB5054156-arm64 (ZIP 167KB)

Download


25H2 Build 26200.5074 ISO from Microsoft:



UUP Dump:

64-bit ISO download:

ARM64 ISO download:

 

Attachments

Last edited:
1) 22631.5771 has no new features. 23H2 not get new features anymore.
2) I'm on 26100.5074. 24H2.

Some (New/Hide)features are also included in the Windows 11 23H2 build. Like New Start also avaiable in Windows 11 23H2 Build 22631.5771.
 

My Computer

System One

  • OS
    Windows 11, version 25H2 (26200)
    Computer type
    PC/Desktop
    CPU
    AMD Ryzen 9 9950X 16-Core Processor
    Motherboard
    ASRock B650M PG Riptide
    Memory
    DDR5-6000 (CL36) 64.0 GB
    Graphics Card(s)
    NVIDIA GeForce RTX 4090
    PSU
    1200W
    Case
    Phanteks Enthoo Pro 2
    Cooling
    Noctua NH-D12L
  • Improved dragging a window to the top of the screen displays these tiling options. Pressing WIN + Z shows the options with Number Key Shortcuts displayed in them, which you can press to activate the chosen tiling arrangement.
MDBrvGe.png

QZ37ecG.png


The Improved Pressing WIN + Z Action is avaiable in Windows 11 23H2 Build 22631.5771, 24H2 Build 26100.5074 and 25H2 Build 26200.5074.
Code:
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\FeatureManagement\Overrides\14]

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\FeatureManagement\Overrides\14\184720015]
"EnabledState"=dword:00000002
"EnabledStateOptions"=dword:00000000
"FlightId"="FX:33800FC2"

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\FeatureManagement\Overrides\14\3909261966]
"EnabledState"=dword:00000002
"EnabledStateOptions"=dword:00000000
"FlightId"="FX:138003CC"
 

My Computer

System One

  • OS
    Windows 11, version 25H2 (26200)
    Computer type
    PC/Desktop
    CPU
    AMD Ryzen 9 9950X 16-Core Processor
    Motherboard
    ASRock B650M PG Riptide
    Memory
    DDR5-6000 (CL36) 64.0 GB
    Graphics Card(s)
    NVIDIA GeForce RTX 4090
    PSU
    1200W
    Case
    Phanteks Enthoo Pro 2
    Cooling
    Noctua NH-D12L
  • Improved dragging a window to the top of the screen displays these tiling options. Pressing WIN + Z shows the options with Number Key Shortcuts displayed in them, which you can press to activate the chosen tiling arrangement.
MDBrvGe.png

QZ37ecG.png


The Improved Pressing WIN + Z Action is avaiable in Windows 11 23H2 Build 22631.5771, 24H2 Build 26100.5074 and 25H2 Build 26200.5074.
Code:
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\FeatureManagement\Overrides\14]

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\FeatureManagement\Overrides\14\184720015]
"EnabledState"=dword:00000002
"EnabledStateOptions"=dword:00000000
"FlightId"="FX:33800FC2"

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\FeatureManagement\Overrides\14\3909261966]
"EnabledState"=dword:00000002
"EnabledStateOptions"=dword:00000000
"FlightId"="FX:138003CC"
It's work for me in 24H2.
 

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
This seems to be a new development, it appears to be 25H2 Insider Release Preview in .msu form....

 

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.
This was a note on the Insider Blog last week 08/29/2025, 25H2 Blog:

"And finally – ISOs will be available for download for Windows 11, version 25H2 via the Windows Insider ISO download page next week."


On Sept 03, 2025, still no sign of 25H2 ISO, we'll see if they release it before the end of the week. 😎🤷‍♂️
 

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 hate this feature...
egFpdFd.png


Disable this feature via Registry Key.
Code:
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\FeatureManagement\Overrides\14]

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\FeatureManagement\Overrides\14\3895955085]
"EnabledState"=dword:00000001
"EnabledStateOptions"=dword:00000000
 

My Computer

System One

  • OS
    Windows 11, version 25H2 (26200)
    Computer type
    PC/Desktop
    CPU
    AMD Ryzen 9 9950X 16-Core Processor
    Motherboard
    ASRock B650M PG Riptide
    Memory
    DDR5-6000 (CL36) 64.0 GB
    Graphics Card(s)
    NVIDIA GeForce RTX 4090
    PSU
    1200W
    Case
    Phanteks Enthoo Pro 2
    Cooling
    Noctua NH-D12L
On a positive note it would seem that my taskbar is working normally again....fingers crossed. :LOL:
 

My Computers

System One System Two

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self Built
    CPU
    Intel Core i9 14900k, Intel UHD 770 integrated
    Motherboard
    Gigabyte Z790 Aorus Master X
    Memory
    32gb G.Skill Trident Z5 7200
    Graphics Card(s)
    Gigabyte RTX 4090 Gaming OC
    Sound Card
    EVGA Nu Audio, Razer Kraken V3 Pro, Realtek Onboard
    Monitor(s) Displays
    Dell U4025QW nano IPS monitor, Samsung Odyssey G75F, Wisecoco 12.6" IPS sensor panel
    Screen Resolution
    5120X2160 x 2 1920x515
    Hard Drives
    WD Black SN8100, Samsung 990 Pro x 3, WD BLACK SN850x, WD Black 8tb HD
    PSU
    FSP Hydro PTM Pro 1350w
    Case
    Thermaltake Level 20 XT
    Cooling
    ARCTIC Liquid Freezer III 420 ARGB in push/pull, Antec Prism X 120mm ARGB Fans x 15
    Keyboard
    Razer Blackwidow V4 Pro
    Mouse
    Razer Basilik V3 Pro on Razer Firefly V2 mouse pad.
    Internet Speed
    950 Mbps cable primary, 6Mbps secondary vdsl
    Browser
    Chrome primary, FF-Edge-IE secondary
    Antivirus
    Norton 360 Premium
    Other Info
    I sit on a Libernovo Omni chair.😍 Sound by Fosi Audio DA-2120C pushing Magnat Series 503 bookshelf speakers and a SVS SB-1000 Pro subwoofer.
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    2023 Acer Predator Helios 18
    CPU
    Intel 14900HX
    Motherboard
    factory
    Memory
    32gb ddr 5 5600
    Graphics card(s)
    Nvidia RTX 4090 mobile
    Sound Card
    onboard
    Monitor(s) Displays
    18" 250hz IPS
    Screen Resolution
    2560X1600
    Hard Drives
    Samsung 9100 Pro, 990 Pro
    PSU
    factory 330W
    Case
    factory
    Cooling
    factory
    Keyboard
    individual key argb
    Mouse
    touchpad
    Internet Speed
    WiFi 7, 2.5gb ethernet
    Browser
    Chrome primary, FF-IE and Edge secondary
    Antivirus
    Norton 360 Premium
    Other Info
    Acer will not allow WD Black SN8100 to function in m.2 slot 0 and Crucial T710 ssd's to function in either slot.
I hate this feature...
egFpdFd.png


Disable this feature via Registry Key.
Code:
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\FeatureManagement\Overrides\14]

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\FeatureManagement\Overrides\14\3895955085]
"EnabledState"=dword:00000001
"EnabledStateOptions"=dword:00000000
I'm still haven't it.

I have it now. It's nice feature.
 
Last edited:

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
1756977069835.webp

decided to try 25H2 been long time since be in a insider ring
 

My Computer

System One

  • OS
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    CPU
    i7 10700K
    Motherboard
    MSI Z590 Gaming Carbon Wifi
    Memory
    ddr4 16gb
    Graphics Card(s)
    nvidia 1080 8GB
    Screen Resolution
    1920x1080p
Maybe today though. Right now, the site is mysteriously resting its eyes and is completely gone.
Will there be a difference between the MS iso and the UUPDump iso?
 

My Computer

System One

  • OS
    Win 11 Insider Release Preview and Beta channels.
    Computer type
    Laptop
    Manufacturer/Model
    HP ENVY Bought: March 2017
    CPU
    i5 Core [email protected] (Unsupported for Win 11)
    Motherboard
    HP 81AD (U3E1)
    Memory
    12GB
    Graphics Card(s)
    Generic PnP Monitor (1920x1080@60Hz) Intel HD Graphics 620 (HP)
    Sound Card
    Conexant ISST audio
    Monitor(s) Displays
    Generic PnP Monitor
    Screen Resolution
    1536x864 pixels
    Hard Drives
    HGST HTS721010A9E630
    PSU
    Well...PSU you too!! What's this mean?
    Case
    HP ENVY SILVER
    Cooling
    A fan.
    Keyboard
    USA
    Mouse
    Logitec Anywhere 2
    Internet Speed
    Good enough for me! Fast!
    Browser
    Edge/Waterfox
    Antivirus
    Windows Defender
    Other Info
    No 'mo.
Will there be a difference between the MS iso and the UUPDump iso?
Latest uupdump Canary ISO files were bad; I don't want to risk another one with this. 😵‍💫
 

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
Maybe today though. Right now, the site is mysteriously resting its eyes and is completely gone.
The link is there, but fails when I try to sign in. 😝🤷‍♂️
1757010939083.webp


1757011066043.webp
 

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
You're not alone, the iso download page is down. MS must be working on it, should hopefully have the new 25H2 iso available once the page is back online.
I literally got on the Insider ISO page 30 seconds ago, there are no new ISOs showing but the page is loading for me
 

My Computer

System One

  • OS
    Windows 11 Pro 25H2 (RP channel)
    Computer type
    PC/Desktop
    Manufacturer/Model
    MSI
    CPU
    AMD Ryzen 7 9800X3D 8-core
    Motherboard
    MEG X870E Godlike
    Memory
    64GB Corsair Titanium 6000/CL30
    Graphics Card(s)
    MSI Suprim 5080 SOC
    Sound Card
    Soundblaster AE-9
    Monitor(s) Displays
    ASUS TUF Gaming VG289Q
    Screen Resolution
    3840x2160
    Hard Drives
    Samsung 9100 Pro 4TB (gen 5 x4, system drive/games)
    Samsung 990 Pro 2TB
    Samsung 980 Pro 2TB
    Samsung 870 Evo 4TB
    Samsung 870 Evo 2TB
    Samsung T9 4TB
    PSU
    Seasonic PX-2200
    Case
    Bequiet! Dark Base Pro 901
    Cooling
    Noctua NH-D15S Chromax black
    Keyboard
    Logitech G915 X (wired)
    Mouse
    Logitech G903 with PowerPlay charger
    Internet Speed
    900Mb/sec
    Browser
    Microsoft Edge
    Antivirus
    Windows Defender
It does come and go, but as you say, nothing new. Perhaps they had second thoughts on this particular build being the foundation.
 

My Computer

System One

  • OS
    Windows 11
You're not alone, the iso download page is down. MS must be working on it, should hopefully have the new 25H2 iso available once the page is back online.
It is back up, but no sign of 25H2 26200.xxxx. 🤣🤣🤷‍♂️

1757015985818.webp
 

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

My Computer

System One

  • OS
    Win 11 Insider Release Preview and Beta channels.
    Computer type
    Laptop
    Manufacturer/Model
    HP ENVY Bought: March 2017
    CPU
    i5 Core [email protected] (Unsupported for Win 11)
    Motherboard
    HP 81AD (U3E1)
    Memory
    12GB
    Graphics Card(s)
    Generic PnP Monitor (1920x1080@60Hz) Intel HD Graphics 620 (HP)
    Sound Card
    Conexant ISST audio
    Monitor(s) Displays
    Generic PnP Monitor
    Screen Resolution
    1536x864 pixels
    Hard Drives
    HGST HTS721010A9E630
    PSU
    Well...PSU you too!! What's this mean?
    Case
    HP ENVY SILVER
    Cooling
    A fan.
    Keyboard
    USA
    Mouse
    Logitec Anywhere 2
    Internet Speed
    Good enough for me! Fast!
    Browser
    Edge/Waterfox
    Antivirus
    Windows Defender
    Other Info
    No 'mo.

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
Elsewhere, someone who knows what they're talking about said "26x00.5074 is causing all kind of software/games to stop working" and speculated that that might be the reason for the delay.

Does anyone have a feeling for what that's about? I don't pay attention to games, but otherwise? I haven't seen anything like it on the later 25H2 build in Dev, at least.
 

My Computer

System One

  • OS
    Windows 11
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