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Fix Windows Defender Update Error 0x80070643 - How to Resolve Microsoft Store Error 0x80073cf0 and High CPU-How to Fix Chrome CPU Usage from Profile Corruption

Updated 2026-06-13 23:03:55browser-issues
Fix Windows Defender Update Error 0x80070643 - How to Resolve Microsoft Store Error 0x80073cf0 and High CPU-How to Fix Chrome CPU Usage from Profile Corruption
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.

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