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Fix Windows Update Error 0x80070002 – Cache Corruption - Windows Defender Connection Refused Registry Solution-Restore BitLocker Auto Unlock After Windows Update

Updated 2026-06-14 17:46:42developer-tools
Fix Windows Update Error 0x80070002 – Cache Corruption - Windows Defender Connection Refused Registry Solution-Restore BitLocker Auto Unlock After Windows Update
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.