File History problems after installing KB5124008, KB5126052,KB5126146, KB5122878, and KB890830

This morning, I ran Windows Update on two Windows 10/11 computers, but the file history feature stopped working completely after the update.

Previously, after updating KB5121003 and KB5101684, files could still be backed up to the D: drive normally. The "Last Backup" time in "File History" is not updating correctly. Newly created or saved Word documents, pictures, videos, etc., still show "No previous version available" in "Content → Previous Versions". No folders were corrected; their dates are automatically updated.

After running Windows Update again today, the file history feature stopped working on both computers. The File History panel pops up but cannot be used, prompting for a hard drive connection. (The hard drive is connected and I've confirmed it can read and write.) resulting in an "InconsistentState" entry in C:\Users\User\AppData\Local\Microsoft\Windows\FileHistory\Configuration.

I'm very angry. If Microsoft doesn't address this, I'll keep complaining. If anyone else has encountered the same situation, please leave a comment below. You can also check Microsoft Q&A or the Microsoft Community Hub.

The three updates installed are:

September 8, 2026—KB5122878 (OS Builds 19045.7725 and 19044.7725)

September 8, 2026-KB5126146 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2

2026-09 Security Update (KB5124008) (26200.9445)

2026-09 .NET Framework Security Update (KB5126052)

Windows Malicious Software Removal Tool x64 - v5.145 (KB890830)

Deleting the %LocalAppData%\Microsoft\Windows\FileHistory folder also failed.

These worked normally before the update but stopped working afterward.

This is to inform other users experiencing the same problem.