How to Fix Windows Defender File Locked Error 0x80070020 - Fix Blank Task Scheduler with Registry Permissions-Troubleshooting Chrome Profile Error After Update

Updated 2026-06-14 16:59:35office-tools
How to Fix Windows Defender File Locked Error 0x80070020 - Fix Blank Task Scheduler with Registry Permissions-Troubleshooting Chrome Profile Error After Update
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.