Fix 'Windows Defender Firewall Has Blocked' Error
You see a notification that Windows Defender Firewall has blocked an app or feature. This usually...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Windows Activation 502 Bad Gateway Firewall Issues
When you try to activate Windows and see a 502 Bad Gateway error, it often point...
Fix Windows Update Version Mismatch Configuration Error
You see a message like "Windows Update configuration mismatch" or "version mismatch" when trying ...
Fix Microsoft Store Token Expired Error 0x80070424
When you see error 0x80070424 in Microsoft Store, it usually means the authentication token has e...
How to Fix Windows Update 404 Not Found Error
When Windows Update returns a 404 Not Found error, it usually means the update server can't locat...
BitLocker Setup Checklist: Avoid Port Allocation Error
When enabling BitLocker, some users encounter a 'port allocation error' that halts the process. T...
Issue queue
SitemapFix 502 Bad Gateway in Chrome After Browser Update
BitLocker Troubleshooting: Permission Denied Checklist
Checklist to Resolve OneDrive 404 Not Found Error
Windows Defender 502 Bad Gateway: How to Fix
Chrome Offline Installer Stuck at Extracting Files: Fixes
Postman SSL Certificate Verification Failed: How to Fix
How to Resolve Microsoft Teams Version Mismatch
Fix OneDrive Sync Error 0x8004de40 on Ubuntu
Troubleshooting Windows Defender Rate Limit on Windows 11
Remote Desktop Credential Manager Reset Steps
Troubleshoot Chrome Sync Issues
Fix Windows Defender Sync Issues with Microsoft Account
BitLocker Troubleshooting: Permission Denied Checklist
Checklist to Resolve OneDrive 404 Not Found Error
Windows Defender 502 Bad Gateway: How to Fix
Chrome Offline Installer Stuck at Extracting Files: Fixes
Postman SSL Certificate Verification Failed: How to Fix
How to Resolve Microsoft Teams Version Mismatch
Fix OneDrive Sync Error 0x8004de40 on Ubuntu
Troubleshooting Windows Defender Rate Limit on Windows 11
Remote Desktop Credential Manager Reset Steps
Troubleshoot Chrome Sync Issues
Fix Windows Defender Sync Issues with Microsoft Account