Fix Microsoft Teams High CPU Usage After Update - How to Fix Defender Threat History Loading Error-OneDrive Sync 502 Error Troubleshooting

Updated 2026-06-18 12:32:03cloud-software
Fix Microsoft Teams High CPU Usage After Update - How to Fix Defender Threat History Loading Error-OneDrive Sync 502 Error Troubleshooting
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.