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Fix PowerShell Startup Error: Missing .NET Framework - How to Fix Windows Activation Service Stuck on Starting-Windows Update Safe Mode Blank Screen Troubleshooting

Updated 2026-06-14 06:12:37developer-tools
Fix PowerShell Startup Error: Missing .NET Framework - How to Fix Windows Activation Service Stuck on Starting-Windows Update Safe Mode Blank Screen Troubleshooting
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.