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Fix Windows Update Login Loop After Configuration Settings - How to Fix KMS Activation Error 0xc004f074 on Server 2019-How to Fix Windows Defender File Locked Error 0x80070020

Updated 2026-06-14 04:01:22cloud-software
Fix Windows Update Login Loop After Configuration Settings - How to Fix KMS Activation Error 0xc004f074 on Server 2019-How to Fix Windows Defender File Locked Error 0x80070020
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.