zhizhu
Home / browser-issues / Microsoft Store High CPU Usage: Troubleshooting Checklist - Fix Windows Defender Update Error 0x80070643-Fix Outlook Version Mismatch Error

Microsoft Store High CPU Usage: Troubleshooting Checklist - Fix Windows Defender Update Error 0x80070643-Fix Outlook Version Mismatch Error

Updated 2026-06-14 00:42:16browser-issues
Microsoft Store High CPU Usage: Troubleshooting Checklist - Fix Windows Defender Update Error 0x80070643-Fix Outlook Version Mismatch Error
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.