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Fix Windows Defender Authentication Failed After Update - Fixing Nginx 404 Errors for API Endpoints-Fix PowerShell Cache Clear Permission Denied Error

Updated 2026-06-13 19:05:28macos-help
Fix Windows Defender Authentication Failed After Update - Fixing Nginx 404 Errors for API Endpoints-Fix PowerShell Cache Clear Permission Denied 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.