Running the System Update Readiness Tool (CheckSUR) can automatically fix many MSU-related corruption issues.
| If you see it… | Action | |----------------|--------| | On an official Microsoft, Dell, HP, or Lenovo support page | Safe – but verify the page is authentic (https://catalog.update.microsoft.com) | | On a forum, file-sharing site, or torrent | – delete immediately | | On a legacy internal corporate server | Check digital signature: Right-click → Properties → Digital Signatures. Should show “Microsoft Windows” |