How to Fix 'Remote Desktop File Locked by Another User' Error - Fix Windows Defender Update Error 0x80070490 on Windows 11-Windows Defender 502 Gateway Error Fix

Updated 2026-06-14 16:21:40backup-recovery
How to Fix 'Remote Desktop File Locked by Another User' Error - Fix Windows Defender Update Error 0x80070490 on Windows 11-Windows Defender 502 Gateway Error 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.