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Fix 'Windows Defender File Locked by Another Program' Error - Fix Windows Access Denied: Reset Security Permissions-Windows Update 0x80070643 Error: Troubleshooting Guide

Updated 2026-06-13 14:25:07browser-issues
Fix 'Windows Defender File Locked by Another Program' Error - Fix Windows Access Denied: Reset Security Permissions-Windows Update 0x80070643 Error: Troubleshooting Guide
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.