System File Checker

Scans and verifies the integrity of all protected system files and replaces incorrect versions with correct versions.

System software · by Microsoft · learn.microsoft.com

Open System File Checker in AirStack

What System File Checker’s own pages say

What it says it doesScans and verifies the integrity of all protected system files and replaces incorrect versions with correct versions. learn.microsoft.com

Each value is a quote AirStack found on the product’s own pages, read 2026-11-05. A missing field means AirStack has not found it on its pages.