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Fix Windows Update Error 0x80070005 (Service Not Starting) - Windows 11 Install Assistant Frozen at 99% Fix-How to Turn On Defender Real-Time Protection Using Group Policy

Updated 2026-07-28 06:27:25windows-fixes
Fix Windows Update Error 0x80070005 (Service Not Starting) - Windows 11 Install Assistant Frozen at 99% Fix-How to Turn On Defender Real-Time Protection Using Group Policy
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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