Fix Windows Security High CPU Usage at Idle - Fix OneDrive Not Syncing with Red X Icon-How to Reset Windows Defender Configuration

Updated 2026-06-17 21:36:01security-tools
Fix Windows Security High CPU Usage at Idle - Fix OneDrive Not Syncing with Red X Icon-How to Reset Windows Defender Configuration
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.