Microsoft says the September 2026 Windows security updates can stop File History from creating or updating backups on some Windows 10 and Windows 11 PCs. The company confirmed the problem affects the ...
[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 ...
A bug in the Windows Sept patch Tuesday update may stop File History from working. But a new optional update fixes it.