According to a source review from TechRadar, the September 2026 Windows 11 update has introduced significant bugs that disrupt audio functionality on some PCs and interfere with the File History backup feature. Microsoft has acknowledged the audio problems affecting USB Audio Class 1.0 devices and is working on a fix, while the File History issue remains more widespread but unconfirmed officially.
- Audio issues affect USB Audio Class 1.0 devices and microphones.
- File History backup may fail, risking data protection measures.
- Microsoft is working on fixes; users may consider delaying the update.
Product angle
The source review reports that the September 2026 update for Windows 11 has introduced problems with audio output and the File History backup function. Specifically, the audio malfunction is linked to certain USB Audio Class 1.0 devices and affects both speakers and microphones, leading to errors causing device inoperability. Sound settings may become unresponsive, complicating resolution efforts for end users.
The File History feature, designed to back up user files to external drives or other locations, appears to encounter failures following the update, though Microsoft has yet to officially acknowledge this problem. These bugs collectively represent a significant disruption to user experience, especially for those relying on stable multimedia functionality and data backup capability.
Best for / avoid if
This Windows 11 update is best avoided currently by users who rely on USB Audio Class 1.0 hardware for professional audio work or require consistent microphone performance, as well as those who utilize the File History backup feature extensively for safeguarding their data. Early adopters or technically inclined users willing to troubleshoot audio settings or apply workarounds might still choose to install the update.
Users who prioritize system stability or who are currently on Windows 10 and are hesitant about migrating to Windows 11 due to these emerging issues should consider deferring the upgrade. Those relying on wireless audio devices appear less affected by the audio glitch, although concerns about File History remain relevant across affected systems.
Pricing and alternatives to check
The update is distributed as part of Microsoft’s routine free updates to Windows 11, so there is no direct cost associated with applying or rolling back the patch. However, delaying the update to avoid these bugs means foregoing the latest security patches temporarily, posing a trade-off between functionality and protection.
As alternatives, users dissatisfied with Windows 11’s recent performance might consider remaining on Windows 10, which is reported to have fewer disruptive changes and is still supported with security updates. Other OS options, like Linux distributions, have been cited by some users as stable alternatives, particularly for those seeking fewer software bugs or who prefer open-source environments.