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

Microsoft just released optional update KB5124010 for Windows 11 25H2 and 24H2, which brings several improvements but also fixes the File History issue below. The same fix is also available via update ...

Microsoft has issued a warning to Windows users who rely on the File History that the backup feature may not function after installing the September 2026 ...

Fix Windows Update Problems with proven steps: clear the cache, free disk space, and recover from reboot loops or failed ...

Microsoft confirms September 2026 Windows updates can break File History, stop new backups, and trigger “Reconnect your drive ...

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.

Windows 11 26H2 officially began rolling out on September 29, 2026.When "Windows 11, version 26H2" appears in Windows Update, ...

Windows 11's September optional update improves File Explorer previews, fixes File History, and targets Bluetooth connectivity bugs.

It’s October 2026, and Microsoft is still finding bugs in Windows 11’s September updates, and it's affecting version 26H2.

Windows 11 version 26H2, the new annual update for the OS, is starting to roll out to all Windows 11 users today.