GoKawiilMicrosoft's September Windows updates break Remote Desktop, USB audio, and Excel paste
Microsoft has acknowledged that its September security patches are causing Remote Desktop Services to fail across several Windows versions, silencing certain USB Audio Class 1.0 devices, and disrupting the paste function in Excel. Affected users report frozen management tools, unresponsive Windows Update pages, and audio glitches that can sometimes be worked around by switching to two-channel sound.
GoKawiil's interpretation of the reporting above, not reported fact.
These regressions undercut Microsoft's stated push to improve Windows update quality, adding another entry to a growing known-issues list that IT admins must track before deploying patches. Since Remote Desktop and Excel are core enterprise tools, the bugs risk real productivity and access disruptions for businesses relying on remote infrastructure and older hardware like Windows Server 2012 nearing its ESU cutoff.
- September's Windows patches broke Remote Desktop Services on several versions, including Windows 11 26H1 and Windows Server 2012.
- USB Audio Class 1.0 devices on Windows 11 24H2/25H2/26H1 may lose sound or multichannel support, with only a two-channel workaround available.
- Excel also faces a paste-function bug tied to a remote code execution fix, adding to Microsoft's mounting update quality issues.
Source: theregister.com — Richard Speed, 2026-09-14
Published there as: “Microsoft patches Windows and Excel – breaks audio, remote access, and paste”
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