How to Fix Windows Security Service Unavailable
When Windows Security shows "Service unavailable" or a red banner, your antivirus and firewall pr...
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1. Reproduce
2. Isolate
3. Apply
4. Verify
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View listBitLocker File Locked: Fix Group Policy Configuration
When a file is locked by BitLocker on a domain-joined Windows machine, the cause is often a group...
Windows Defender Rate Limit Error Troubleshooting Checklist
You might see a Windows Defender rate limit error when scanning files or updating definitions. Th...
Fix Firefox Not Responding When Opening a New Tab
You click the new tab button (or press Ctrl+T) and Firefox freezes, goes white, or shows a spinni...
Fix Windows Security Service Unavailable Permission Denied
You open Windows Security and see 'Service unavailable' or 'Permission denied'. The app may not o...
Fix Windows Security Authentication Error 0x80070035
When you try to access a shared folder or printer on another computer, you might see an error:
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