Each day we read the Known issues section of Microsoft's support article for every recent Windows and Office update and record what changed. Since our last post, Microsoft changed that section on 4 updates. Every quote below is Microsoft's own text, from the article linked beside it.
Known issues Microsoft updated
"USB Audio Class 1.0 devices with error Code 10 or no output"
Microsoft changed the text of this known issue for:
- KB5126651 (Windows 10 Version 1809 and Windows Server 2019), Microsoft's article
- KB5126868 (Windows 10 Version 1607 and Windows Server 2016), Microsoft's article
The new text, in Microsoft's words:
This issue is partially resolved in the out-of-band (OOB) update released on September 14, 2026. This OOB update resolves the symptoms experienced on devices using 8-channel or 3D audio modes. Microsoft is working to address the other symptoms and will provide more information when it is available. IT administrators who need an immediate workaround for the symptoms not addressed yet by the OOB update should contact Microsoft Support for Business for assistance.
"Remote Desktop connections might fail for non-admin users with error 0xC000000D"
Microsoft changed the text of this known issue for:
- KB5127648 (Windows 11 Version 24H2 and Windows 11 Version 25H2), Microsoft's article
The new text, in Microsoft's words:
After installing the September 2026 non-security preview update KB5124010 , or later updates, non-admin users might be unable to establish Remote Desktop connections to remote devices that have Administrator protection enabled. Attempts to connect might fail with error 0xC000000D and display the message, “The token that was passed to the function is invalid.” This issue primarily affects enterprise-managed remote devices used as Remote Desktop hosts with Administrator protection enabled, regardless of how the feature was enabled . Note: If your organization uses Windows security baselines , published through the Microsoft Security Compliance Toolkit , Administrator protection is enabled by default in Windows 11, version 24H2, 25H2, and 26H2 security baselines, unless your organization has configured the policy differently. IT administrators can mitigate this issue on devices affected by the Remote Desktop connection failure by using their existing policy management method to temporarily turn off Administrator protection. Reset the User Account Control Type Of Admin Approval Mode policy in Microsoft Intune or Group Policy. For more information, see Administrator protection on Windows 11 . Next steps: Microsoft is working to address this issue in a future Windows update and will provide more information when it is available.
"USB audio devices might fail to start or produce no sound"
Microsoft changed the text of this known issue for:
- KB5127648 (Windows 11 Version 24H2 and Windows 11 Version 25H2), Microsoft's article
The new text, in Microsoft's words:
After installing the September 8, 2026, Windows security update (KB5124012), some USB Audio Class 1.0 devices might fail to start or produce audio. Affected devices might experience one or more of the following symptoms: The device displays an error in Device Manager: "This device cannot start (Code 10).” No audio output. Volume controls are unresponsive or remain at zero. Sound settings are unresponsive or unavailable. Some devices might function in standard stereo configurations but fail when using multichannel audio features, including 8-channel or 3D audio modes. Some customers have reported that they're able to restore audio in these cases by switching to 2-channel mode. This issue is limited to USB Audio Class 1.0 devices. This issue is partially resolved in the out-of-band (OOB) update released on September 14, 2026, (KB5129195) . This OOB update resolves the symptoms experienced on devices using 8-channel or 3D audio modes. Microsoft is working to address the other symptoms and will provide more information when it is available. IT administrators who need an immediate workaround for the symptoms not addressed yet by the OOB update should contact Microsoft Support for Business for assistance.
"USB audio devices might fail to start or produce no sound"
Microsoft changed the text of this known issue for:
- KB5127646 (Windows 11 Version 26H1 and Windows 11 version 26H1), Microsoft's article
The new text, in Microsoft's words:
IT administrators who need an immediate workaround for the symptoms not addressed yet by the OOB update should contact Microsoft Support for Business for assistance.
Every recent update and its known issues are on our Microsoft patch tracker.
Compiled automatically by the Senserva Patch Tracker from Microsoft's support articles. No AI writes this post: every quote is copied from the article it links, and an issue counts as changed only when Microsoft's text changed. Sources and their terms are on our Data sources & thanks page. Facts as of 2026-10-19.