Insider KB5072032 Windows 11 Insider Canary build 28000.1340 (26H1) - Dec. 9


UPDATE 12/15:


 Windows Insider Blog:

Hello Windows Insiders, today we are releasing Windows 11 Insider Preview Build 28000.1340 to the Canary Channel. (KB 5072032)

What’s new in Build 28000.1340

[General]

  • This update includes a small set of general improvements and fixes that improve the overall experience for Insiders running this build on their PCs.
  • This update is beginning to enable some more of the new features and improvements originally released with the October non-security preview update for Windows 11, version 24H2 and 25H2.

[Administrator Protection]

[Storage]

  • Fixed an issue which could cause some Storage Spaces to become inaccessible or Storage Spaces Direct to fail when creating a storage cluster.

Reminders for Windows Insiders in the Canary Channel

  • The builds we release to the Canary Channel represent the latest platform changes early in the development cycle and should not be seen as matched to any specific release of Windows. Features and experiences included in these builds may never get released as we try out different concepts and get feedback. Features may change over time, be removed, or replaced and never get released beyond Windows Insiders. Some of these features and experiences could show up in future Windows releases when they’re ready.
  • Many features in the Canary Channel are rolled out using Control Feature Rollout technology, starting with a subset of Insiders and ramping up over time as we monitor feedback to see how they land before pushing them out to everyone in this channel.
  • Some features may show up in the Dev and Beta Channels first before showing up in the Canary Channel.
  • Some features in active development we preview with Windows Insiders may not be fully localized and localization will happen over time as features are finalized. As you see issues with localization in your language, please report those issues to us via Feedback Hub.
  • To get off the Canary Channel, a clean install of Windows 11 will be required. As a reminder – Insiders can’t switch to a channel that is receiving builds with lower build numbers without doing a clean installation of Windows 11 due to technical setup requirements.
  • Check out Flight Hub for a complete look at what build is in which Insider channel.
Thanks,
Windows Insider Program Team



 Source:



Check Windows Updates


UUP Dump:

64-bit ISO download:

ARM64 ISO download:

 
Last edited:
MS must be making up for constantly putting me in their B ring category. Neither one of my desktop computers have the white flash in file explorer. The B746 is on the latest release build and the G156 is on the latest Canary build.
You need a specific sequence to reproduce the problem after latest updates.
Open explorer set for Home in Light or Dark mode then switch mode to the opposite of what it was set when you opened explorer, then use the + sign to add a tab.
 

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 need a specific sequence to reproduce the problem after latest updates.
Open explorer set for Home in Light or Dark mode then switch mode to the opposite of what it was set when you opened explorer, then use the + sign to add a tab.
That doesn't make sense. Why would I or anyone for that matter want to do that. IMO, if it was happing normally and not by making unnecessary changes to the settings I don't see this as a bug.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    PowerSpec B746
    CPU
    Intel Core i7-10700K
    Motherboard
    ASRock Z490 Phantom Gaming 4/ax
    Memory
    16GB (8GB PC4-19200 DDR4 SDRAM x2)
    Graphics Card(s)
    NVIDIA GeForce GTX 1050 TI
    Sound Card
    Realtek Audio
    Monitor(s) Displays
    #1. LG ULTRAWIDE 34" #2. AOC Q32G2WG3 32"
    Screen Resolution
    #1. 3440 X 1440 #2. 1920 x 1080
    Hard Drives
    NVMe WDC WDS100T2B0C-00PXH0 1TB
    Samsung SSD 860 EVO 1TB
    PSU
    750 Watts (62.5A)
    Case
    PowerSpec/Lian Li ATX 205
    Keyboard
    Logitech K270
    Mouse
    Logitech M185
    Browser
    Microsoft Edge and Firefox
    Antivirus
    Webroot SecureAnywhere CE 26.1
  • Operating System
    Windows 11 Canary Channel
    Computer type
    PC/Desktop
    Manufacturer/Model
    PowerSpec G156
    CPU
    Intel Core i5-8400 CPU @ 2.80GHz
    Motherboard
    AsusTeK Prime B360M-A
    Memory
    16 MB DDR 4-2666
    Monitor(s) Displays
    23" Speptre HDMI 75Hz
    Screen Resolution
    1920x1080
    Hard Drives
    Samsung 970 EVO 500GB NVMe
    Keyboard
    Logitek K270
    Mouse
    Logitek M185
    Browser
    Firefox, Edge and Edge Canary
    Antivirus
    Windows Defender
That doesn't make sense. Why would I or anyone for that matter want to do that. IMO, if it was happing normally and not by making unnecessary changes to the settings I don't see this as a bug.

We do that for debugging. 😉
It is a bug that they tried to fix, but they did not fix it properly. Also, if you open to This PC, it fails without changing color mode. 😵‍💫🤬🤷‍♂️
Open to This PC in Dark mode and then click on the + sign to add a tab.
Before latest updates this was working fine in previous Canary Build, but not anymore. 🤬🤷‍♂️

1765488102416.gif


1765491707571.webp
 
Last edited:

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
That doesn't make sense. Why would I or anyone for that matter want to do that. IMO, if it was happing normally and not by making unnecessary changes to the settings I don't see this as a bug.
That would be the MS standard scripted boilerplate response to a bug report. :unsure:
 

My Computer

System One

  • OS
    Windows 11
if you open to This PC, it fails without changing color mode.
I always open File Explorer on all of my computers to This PC and like I said, I do not get the white flash.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    PowerSpec B746
    CPU
    Intel Core i7-10700K
    Motherboard
    ASRock Z490 Phantom Gaming 4/ax
    Memory
    16GB (8GB PC4-19200 DDR4 SDRAM x2)
    Graphics Card(s)
    NVIDIA GeForce GTX 1050 TI
    Sound Card
    Realtek Audio
    Monitor(s) Displays
    #1. LG ULTRAWIDE 34" #2. AOC Q32G2WG3 32"
    Screen Resolution
    #1. 3440 X 1440 #2. 1920 x 1080
    Hard Drives
    NVMe WDC WDS100T2B0C-00PXH0 1TB
    Samsung SSD 860 EVO 1TB
    PSU
    750 Watts (62.5A)
    Case
    PowerSpec/Lian Li ATX 205
    Keyboard
    Logitech K270
    Mouse
    Logitech M185
    Browser
    Microsoft Edge and Firefox
    Antivirus
    Webroot SecureAnywhere CE 26.1
  • Operating System
    Windows 11 Canary Channel
    Computer type
    PC/Desktop
    Manufacturer/Model
    PowerSpec G156
    CPU
    Intel Core i5-8400 CPU @ 2.80GHz
    Motherboard
    AsusTeK Prime B360M-A
    Memory
    16 MB DDR 4-2666
    Monitor(s) Displays
    23" Speptre HDMI 75Hz
    Screen Resolution
    1920x1080
    Hard Drives
    Samsung 970 EVO 500GB NVMe
    Keyboard
    Logitek K270
    Mouse
    Logitek M185
    Browser
    Firefox, Edge and Edge Canary
    Antivirus
    Windows Defender
I always open File Explorer on all of my computers to This PC and like I said, I do not get the white flash.
Something must be different in your settings or hardware.
Many users are reporting the problem with flashing when Explorer is open to This PC while in Dark mode and then pressing the + sign to add a new tab.
You can see the animation on my previous post #23.
I get the same problem on 5 different machines with NVIDIA and Intel Graphics.
It is often the case that not all users see the same issues, still it is a proven reported problem by many different users. 😵‍💫🤬🤷‍♂️
 

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
This problem can also be reproduced in a VM base environment, so it is not related to the graphics card.
 

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
This problem can also be reproduced in a VM base environment, so it is not related to the graphics card.
Always confusing, it would be interesting to know why Winuser is not seeing the problem. For me it is quite solid.
He must be doing something different. 😵‍💫🤷‍♂️
 

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
Always confusing, it would be interesting to know why Winuser is not seeing the problem. For me it is quite solid.
He must be doing something different. 😵‍💫🤷‍♂️
No, It's MS's way of saying that they are sorry for all the years they stuck my butt into the B tester ring. :cool: How do you make your videos and get them small enough to upload to the forum? If I can figure it out I'll post a video showing that I don't get the white flash.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    PowerSpec B746
    CPU
    Intel Core i7-10700K
    Motherboard
    ASRock Z490 Phantom Gaming 4/ax
    Memory
    16GB (8GB PC4-19200 DDR4 SDRAM x2)
    Graphics Card(s)
    NVIDIA GeForce GTX 1050 TI
    Sound Card
    Realtek Audio
    Monitor(s) Displays
    #1. LG ULTRAWIDE 34" #2. AOC Q32G2WG3 32"
    Screen Resolution
    #1. 3440 X 1440 #2. 1920 x 1080
    Hard Drives
    NVMe WDC WDS100T2B0C-00PXH0 1TB
    Samsung SSD 860 EVO 1TB
    PSU
    750 Watts (62.5A)
    Case
    PowerSpec/Lian Li ATX 205
    Keyboard
    Logitech K270
    Mouse
    Logitech M185
    Browser
    Microsoft Edge and Firefox
    Antivirus
    Webroot SecureAnywhere CE 26.1
  • Operating System
    Windows 11 Canary Channel
    Computer type
    PC/Desktop
    Manufacturer/Model
    PowerSpec G156
    CPU
    Intel Core i5-8400 CPU @ 2.80GHz
    Motherboard
    AsusTeK Prime B360M-A
    Memory
    16 MB DDR 4-2666
    Monitor(s) Displays
    23" Speptre HDMI 75Hz
    Screen Resolution
    1920x1080
    Hard Drives
    Samsung 970 EVO 500GB NVMe
    Keyboard
    Logitek K270
    Mouse
    Logitek M185
    Browser
    Firefox, Edge and Edge Canary
    Antivirus
    Windows Defender
No, It's MS's way of saying that they are sorry for all the years they stuck my butt into the B tester ring. :cool: How do you make your videos and get them small enough to upload to the forum? If I can figure it out I'll post a video showing that I don't get the white flash.
I use screentogif, and reduce the size of the area covered, then I just record enough to show the problem and stop the recording.
 

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
If I can figure it out I'll post a video showing that I don't get the white flash.

You can do this using free GIF animation creation tools. I use Premiere Pro to compress and output GIF animations. The reason you don't have a problem might be due to different Windows settings, which doesn't necessarily mean the problem doesn't exist.
 

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
No flashing here!

11359.gif
 

My Computers

System One System Two

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    ASUS ROG Strix
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    ASUS VivoBook

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
    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

My Computers

System One System Two

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    ASUS ROG Strix
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    ASUS VivoBook
I had to abandon Canary, all 28000 updates failed due to insufficient space.
No surprise, 25H2 took 65GB and my previous system partition was 64GB.
Lucky that BIOS allows to clear SSD, since even 25H2 fails to clean install.
Hopefully dumb 11 will be satisfied by selecting old slow SSD as 0 disk.
 

My Computer

System One

  • OS
    Home26H2Can
    Computer type
    PC/Desktop
    CPU
    AMD Ryzen 5 8600G (07/24)
    Motherboard
    ASROCK B650M-HDV/M.2 (07/24) BIOS 4.21 AGESA ComboAM5 1.3.0.1 (04/26)
    Memory
    2x32GB Kingston FURY DDR5 5600 MHz CL36 @5200 CL36 (07/24)
    Graphics Card(s)
    ASROCK Radeon RX 6600 Challenger D 8G @48FPS (08/24)
    Sound Card
    Creative Sound BlasterX AE-5 Plus (05/24)
    Monitor(s) Displays
    24" Philips 24M1N3200ZS/00 (05/24)
    Screen Resolution
    1920×1080@165Hz via DP1.4
    Hard Drives
    Kingston KC3000 NVMe 2TB (05/24)
    ADATA XPG GAMMIX S11 Pro 512GB (07/19)
    PSU
    Seasonic Core GM 550 Gold (04/24)
    Case
    Fractal Design Define 7 Mini with 3x Noctua NF-P14s/12@555rpm (04/24)
    Cooling
    Noctua NH-U12S with Noctua NF-P12 (04/24)
    Keyboard
    HP Pavilion Wired Keyboard 300 (07/24) + Rabalux 76017 Parker (01/24)
    Mouse
    Logitech M330 Silent Plus (01/26)
    Internet Speed
    500/100 Mbps via RouterOS (05/21) & TCP Optimizer
    Browser
    Edge, Brave for YouTube, LibreWolf for FB
    Antivirus
    NextDNS blocking 1/3 Traffic
    Other Info
    Phone: Motorola Moto G86 (02/26)
    Backup: Hasleo Backup Suite (PreOS)
    Headphones: Sennheiser RS170 (09/10)
    Chair: Huzaro Force 4.4 Grey Mesh (05/24)
    Notifier: Xiaomi Mi Band 9 Milanese (10/24)
    FlexCore USB-C 3.2 Gen 1 (M) to LAN (F) (08/25)
You need a specific sequence to reproduce the problem after latest updates.
Open explorer set for Home in Light or Dark mode then switch mode to the opposite of what it was set when you opened explorer, then use the + sign to add a tab.
I just tried switching between dark and light mode while having File Explorer set to open to Home. When I switched from dark to light I got the black flash. When I switched back to dark mode File Explorer worked Ok.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    PowerSpec B746
    CPU
    Intel Core i7-10700K
    Motherboard
    ASRock Z490 Phantom Gaming 4/ax
    Memory
    16GB (8GB PC4-19200 DDR4 SDRAM x2)
    Graphics Card(s)
    NVIDIA GeForce GTX 1050 TI
    Sound Card
    Realtek Audio
    Monitor(s) Displays
    #1. LG ULTRAWIDE 34" #2. AOC Q32G2WG3 32"
    Screen Resolution
    #1. 3440 X 1440 #2. 1920 x 1080
    Hard Drives
    NVMe WDC WDS100T2B0C-00PXH0 1TB
    Samsung SSD 860 EVO 1TB
    PSU
    750 Watts (62.5A)
    Case
    PowerSpec/Lian Li ATX 205
    Keyboard
    Logitech K270
    Mouse
    Logitech M185
    Browser
    Microsoft Edge and Firefox
    Antivirus
    Webroot SecureAnywhere CE 26.1
  • Operating System
    Windows 11 Canary Channel
    Computer type
    PC/Desktop
    Manufacturer/Model
    PowerSpec G156
    CPU
    Intel Core i5-8400 CPU @ 2.80GHz
    Motherboard
    AsusTeK Prime B360M-A
    Memory
    16 MB DDR 4-2666
    Monitor(s) Displays
    23" Speptre HDMI 75Hz
    Screen Resolution
    1920x1080
    Hard Drives
    Samsung 970 EVO 500GB NVMe
    Keyboard
    Logitek K270
    Mouse
    Logitek M185
    Browser
    Firefox, Edge and Edge Canary
    Antivirus
    Windows Defender
I just tried switching between dark and light mode while having File Explorer set to open to Home. When I switched from dark to light I got the black flash. When I switched back to dark mode File Explorer worked Ok.
At least you see half of the problem. 😎
It flashes white or black when I click on the + sign to add a tab if I switch mode right after I open explorer with the opposite mode. 🤷‍♂️
 

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
At least you see half of the problem. 😎
It flashes white or black when I click on the + sign to add a tab if I switch mode right after I open explorer with the opposite mode. 🤷‍♂️
A strange problem for sure. :unsure:
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    PowerSpec B746
    CPU
    Intel Core i7-10700K
    Motherboard
    ASRock Z490 Phantom Gaming 4/ax
    Memory
    16GB (8GB PC4-19200 DDR4 SDRAM x2)
    Graphics Card(s)
    NVIDIA GeForce GTX 1050 TI
    Sound Card
    Realtek Audio
    Monitor(s) Displays
    #1. LG ULTRAWIDE 34" #2. AOC Q32G2WG3 32"
    Screen Resolution
    #1. 3440 X 1440 #2. 1920 x 1080
    Hard Drives
    NVMe WDC WDS100T2B0C-00PXH0 1TB
    Samsung SSD 860 EVO 1TB
    PSU
    750 Watts (62.5A)
    Case
    PowerSpec/Lian Li ATX 205
    Keyboard
    Logitech K270
    Mouse
    Logitech M185
    Browser
    Microsoft Edge and Firefox
    Antivirus
    Webroot SecureAnywhere CE 26.1
  • Operating System
    Windows 11 Canary Channel
    Computer type
    PC/Desktop
    Manufacturer/Model
    PowerSpec G156
    CPU
    Intel Core i5-8400 CPU @ 2.80GHz
    Motherboard
    AsusTeK Prime B360M-A
    Memory
    16 MB DDR 4-2666
    Monitor(s) Displays
    23" Speptre HDMI 75Hz
    Screen Resolution
    1920x1080
    Hard Drives
    Samsung 970 EVO 500GB NVMe
    Keyboard
    Logitek K270
    Mouse
    Logitek M185
    Browser
    Firefox, Edge and Edge Canary
    Antivirus
    Windows Defender
Hi, has anyone noticed a big increase with this 26H1 and the first 1199,
my c: drive is approx 56Gb even with the EdgeView app folder 600mb deleted?

PS read some previous posts and see some have 65Gb installs.
 

My Computer

System One

  • OS
    Win 11
    Computer type
    Laptop
    Manufacturer/Model
    ASUS
    CPU
    AMD Ryzen 7 3700u
    Motherboard
    ASUS
    Graphics Card(s)
    AMD Radeon Vega 10
    Browser
    EDGE
    Antivirus
    None Windows defender works ok,

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