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Windows 11 Installation Assistant Stuck at 99% Due to Antivirus - How to Resolve Nginx Upstream Refused Connection-Chrome Startup Crash Due to Sandboxing: How to Fix

Updated 2026-07-28 12:14:27office-tools
Windows 11 Installation Assistant Stuck at 99% Due to Antivirus - How to Resolve Nginx Upstream Refused Connection-Chrome Startup Crash Due to Sandboxing: How to Fix
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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