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 Defender Token Expired After Update
After a Windows update, you might see an error that Windows Defender's security token has expired...
Fix Outlook SSL Certificate Error with Permission Denied
An Outlook SSL certificate error accompanied by a 'permission denied' message usually appears whe...
Fix Windows Search 502 Bad Gateway Due to Proxy Settings
If Windows Search returns a 502 Bad Gateway error, it's often because the search service is tryin...
Chrome Backup File Location Not Found: How to Fix
You're trying to restore a Chrome backup, but the file location isn't found. This often happens w...
Fix Windows Search Access Denied Error via Command Prompt
If you see an "Access Denied" error when trying to search files or rebuild the search index in Wi...
Issue queue
SitemapOutlook Calendar Update Troubleshooting Guide
Fix Chrome Service Unavailable Permissions Error
Fix Module Not Found Error in Command Prompt
How to Fix Remote Desktop Invalid Configuration Errors
How to Fix Black Screen After Remote Desktop Login on Windows
How to Delete Windows Terminal Cache via CLI
Chrome Profile Setup: A Beginner's Checklist
How to Fix Locked Files in Microsoft Teams
Windows Update Authentication Failed: Group Policy Fix
How to Fix Microphone Access Denied in Teams
How to Free a Port in Windows Command Prompt
Fix Windows Defender Sync Not Working on Mac
Fix Chrome Service Unavailable Permissions Error
Fix Module Not Found Error in Command Prompt
How to Fix Remote Desktop Invalid Configuration Errors
How to Fix Black Screen After Remote Desktop Login on Windows
How to Delete Windows Terminal Cache via CLI
Chrome Profile Setup: A Beginner's Checklist
How to Fix Locked Files in Microsoft Teams
Windows Update Authentication Failed: Group Policy Fix
How to Fix Microphone Access Denied in Teams
How to Free a Port in Windows Command Prompt
Fix Windows Defender Sync Not Working on Mac