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Fix Windows Defender Proxy Error Not Working - Fix Microsoft Teams White Screen on Startup-Chrome Profile 404 Error: How to Fix Missing User Data

Updated 2026-06-14 17:53:47developer-tools
Fix Windows Defender Proxy Error Not Working - Fix Microsoft Teams White Screen on Startup-Chrome Profile 404 Error: How to Fix Missing User Data
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.