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Fix Windows Security Proxy Error Not Working - Windows Defender Version Mismatch: Practical Fix Checklist-Fix Windows Defender Update Error 0x80240022

Updated 2026-06-14 06:05:57cloud-software
Fix Windows Security Proxy Error Not Working - Windows Defender Version Mismatch: Practical Fix Checklist-Fix Windows Defender Update Error 0x80240022
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.