A bug in the Windows Sept patch Tuesday update may stop File History from working. But a new optional update fixes it.

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

Reconnect it and then tap or click to keep saving copies of your files. Or even- Your files will be temporarily copied to your hard drive until you reconnect your File History drive and run a backup.

File History in Windows 11/10 regularly backs up versions of your files residing under this PC and the OneDrive files available offline. So, over time, this process leads to a buildup of history of ...

As far as set-it-and-forget-it backup solutions go, there are few more convenient than the File History feature that's built natively into Windows 10. We've probably all been lectured at some point on ...