Fix 'Windows Update File Locked by Another Program' Error - Windows Update Error 0x80070057: Token Expired Fix-Windows Defender 502 Permission Denied Fix

Updated 2026-06-13 21:50:15security-tools
Fix 'Windows Update File Locked by Another Program' Error - Windows Update Error 0x80070057: Token Expired Fix-Windows Defender 502 Permission Denied Fix
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.