PowerShell Service Unavailable: Quick Troubleshooting Checklist
When you see a 'PowerShell service unavailable' error, it usually means PowerShell cannot connect...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Windows Defender Connection Refused via Group Policy
If you see a "connection refused" error when trying to open Windows Defender Security Center or r...
Fix Windows Activation Service Not Running
If you see an error saying the Windows Activation service is not running, your system may not be ...
Fix Windows Activation File Locked by Antivirus
If you see an error like “Windows activation file locked by antivirus” or activation repeatedly f...
Fix 'OneDrive File Locked by Another User' Sync Stuck
You're trying to sync a file in OneDrive, but it's stuck and shows 'File locked by another user'....
Fix Windows Defender DNS Error Not Working
You open Windows Security and see a warning that Windows Defender isn't working, often accompanie...
Issue queue
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Fix Windows Search Blank Screen in Safe Mode
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Fix Microsoft Store Not Working Due to Proxy Settings
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