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How to Fix Windows 11 Installation Assistant Stuck at 99% - Windows Explorer Keeps Restarting in Windows 11: Fixes-Troubleshoot Nginx Upstream Connection Refused

Updated 2026-07-28 06:34:08developer-tools
How to Fix Windows 11 Installation Assistant Stuck at 99% - Windows Explorer Keeps Restarting in Windows 11: Fixes-Troubleshoot Nginx Upstream Connection Refused
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.