Known and Resolved issues for Windows 11 version 26H2



 Windows message center:

Windows 11 version 26H2 End of Servicing on October 10, 2028

www.elevenforum.com

Windows 11 version 26H2 build 26300.9550 now generally available

Windows IT Pro Blog: Windows 11, version 26H2 is now generally available, delivering the next annual feature update for Windows 11. Built on the same servicing foundation as Windows 11, versions 25H2 or 24H2, version 26H2 continues Microsoft focus on providing a predictable, low-disruption...
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How to get the Windows 11 2026 version 26H2 Update

Windows Blogs: Windows powers how people around the world work, learn, create, and connect every day. Today, we’re announcing the availability of the Windows 11 2026 Update, also known as Windows 11, version 26H2. Built on the same servicing foundation as recent Windows 11 releases, version 26H2...
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What's new in Windows 11, version 26H2 for IT pros

Learn more about what's new in Windows 11, version 26H2, including servicing updates.
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Current status as of September 29, 2026

Windows 11, version 26H2 has reached general availability. This new version contains all the recently announced features in Windows 11, versions 25H2 and 24H2 and will be delivered using servicing technology, providing a fast installation experience.

The rollout is phased and will expand over the next few months. Starting today, version 26H2 is available on eligible Windows 11, version 25H2 and version 24H2 devices for users who have turned on the setting Get the latest updates as soon as they’re available. If the update is ready for your device, it will download and install automatically, and a single restart will complete the process.

For more details on how to install Windows 11, version 26H2, watch this video.





 Known issues

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Windows 11, version 26H2 known issues and notifications

View announcements and review known issues and fixes for Windows 11, version 26H2
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Summary​
Originating update​
Status​
Last updated​
Domain-joined devices might lose their secure trust relationship with the domain
Some Credential Guard protected machine accounts might be unable to sign in interactively will valid domain credentials.		N/AResolved
KB5124010		2026-10-08
17:44 PT
Applications which require AC-3 audio decoding might close unexpectedly
This issue is more likely to occur in legacy applications, and unlikely for many modern applications.		OS Build 26200.9550
KB5124010
2026-09-22		Confirmed2026-10-02
15:41 PT
USB audio devices might fail to start or produce no sound
Some USB Audio Class 1.0 devices display Code 10 or fail in multichannel audio modes after installing the Sept. 8 update		N/AMitigated2026-09-29
13:05 PT
Devices might experience a black screen or desktop loading issues after sign-in
Microsoft has received reports of this issue occurring in some virtual desktop environments.		N/AMitigated2026-09-29
13:05 PT



 Resolved issues

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Resolved issues in Windows 11, version 26H2

Resolved issues in Windows 11, version 26H2
learn.microsoft.com

Summary​
Originating update​
Status​
Date resolved​
Domain-joined devices might lose their secure trust relationship with the domain
Some Credential Guard protected machine accounts might be unable to sign in interactively will valid domain credentials.		N/AResolved
KB5124010		2026-09-22
10:00 PT
 
Last edited:
Click to expand...
If you’re running in PowerShell (where the prompt has the word “PS”), then you need to provide a relative or full pathname for the batch file.
Code: 
.\Repair_My_BootWIM.bat E:

\folder\path\Repair_My_BootWIM.bat E:
 

My Computer My Computer

At a glance

Windows 7
OS
Windows 7
garlin said:
If you’re running in PowerShell (where the prompt has the word “PS”), then you need to provide a relative or full pathname for the batch file.
Code: 
.\Repair_My_BootWIM.bat E:

\folder\path\Repair_My_BootWIM.bat E:
Click to expand...
I am using the CMD Command Prompt.
Should I enter it into this path?
if ($args.Count -eq 0) {
'Usage: Repair_My_BootWIM.bat [DriveLetter]'
exit 0
\folder\path\Repair_My_BootWIM.bat E:
 

My Computer My Computer

At a glance

Window 11
OS
Window 11
Computer type
Laptop
Manufacturer/Model
Dell
1. Extract or save the batch to a folder.
2. From your command window, "cd" into that folder.
3. Run ".\Repair_My_BootWIM.bat D:"

In this example, you've already prepared an USB thumb drive that boots. And it's plugged in as drive letter D:
 

My Computer My Computer

At a glance

Windows 7
OS
Windows 7

My Computers My Computers

System One System Two

  • At a glance

    Windows 11 Pro 25H2 build: (26200.7623)32GB
    OS
    Windows 11 Pro 25H2 build: (26200.7623)
    Computer type
    Laptop
    Manufacturer/Model
    Microsoft Surface Pro
    Memory
    32GB

  • At a glance

    Microsoft 25H2 ProIntel Core Ultra 764GBIntel Integrated Graphics
    Operating System
    Microsoft 25H2 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Dell Pro 14 - PC14250
    CPU
    Intel Core Ultra 7
    Memory
    64GB
    Graphics card(s)
    Intel Integrated Graphics
    Hard Drives
    Micron 1TB SSD
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