Windows Update Side Effect: File History Crippled

TVS News AI, editorially supervised, presents Windows Update Side Effect: File History Crippled.

Security update with a side effect: heise online reports that Microsoft's September Patch Tuesday brings an additional problem — Windows File History may fail.

Anyone who relies on the built-in backup function gets an unpleasant surprise exactly where they wanted to protect themselves. File History saves backup copies of important files in the background — if it fails, this often only becomes apparent when a file is lost.

What exactly the security updates cause, which Windows versions are affected, and whether Microsoft is already working on a fix, is not yet clear from the short heise report.

What does heise online report specifically?

According to the editorial team, the September security updates for Windows create another problem: File History may fail. This adds the disruption to a series of side effects accompanying the patch day.

What is File History actually?

File History — in German "Dateiversionsverlauf" — is the automatic backup function built into Windows. It regularly saves backup copies of selected folders such as Documents, Pictures, or Desktop to an external drive or network drive, enabling the restoration of older file versions.

What can you do now?

As long as no more specific information is available from Microsoft, a quick self-check is worthwhile: Open Windows Settings, navigate to "Update & Security" → "Security" → "File History" and verify whether the function is still active and backups are being written. If you want to play it safe, manually back up important files for now — on an external hard drive or in cloud storage. As soon as Microsoft or heise online publishes details, we will update this article.