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Fix 'Windows Defender File Locked Cannot Access' Error - Fix 'Token Expired' in Microsoft Teams Without Reinstalling-How to Fix 'Remote Desktop Module Missing mstscax.dll' Error

Updated 2026-06-16 15:46:00developer-tools
Fix 'Windows Defender File Locked Cannot Access' Error - Fix 'Token Expired' in Microsoft Teams Without Reinstalling-How to Fix 'Remote Desktop Module Missing mstscax.dll' Error
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.