Windows 11 machines that installed KB5124008, the mandatory September 8, 2026 security update, began failing to back up files through File History without ever showing an error that said so plainly.

Microsoft warned that the built-in File History backup feature in Windows may stop working on some systems after installing the September 2026 security updates.

I’m not the biggest fan of mainstream cloud storage like OneDrive, simply because I prefer open-source options that give more control. However, it’s hard to deny how convenient OneDrive is, which ...

Microsoft is still forcing you to back up your files to the cloud, but recent changes have made it easier to restore your local files. Too bad those changes aren't documented. Microsoft is getting ...

[File History (known issue)] Fixed: This update addresses an issue where File History might fail to back up or restore files to an external drive or network location. Affected devices might ...

Microsoft has fixed a known issue that breaks the built-in File History backup feature on some Windows systems after installing the September 2026 security updates. In a Saturday service alert seen by ...