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 notesHow to Fix 'Connection Refused' Error in CMD
When you see 'connection refused' in CMD, it means the remote server is actively rejecting your c...
Fix OneDrive Sync Blocked by Third-Party Antivirus File Lock
OneDrive suddenly stops syncing files, showing errors like “Changes to
Fix Windows Security Module Service Not Running
You open Windows Security and see a message that the service isn't running. The shield icon in th...
Chrome Extension Not Appearing in Toolbar: Fixes
You installed a Chrome extension, but its icon isn't showing up in the toolbar. This is frustrati...
How to Fix Edge Browser Permission Denied Error
You open Microsoft Edge and see a "permission denied" error when trying to access a site, a file,...
Issue queue
SitemapHow to Resolve Permission Denied in VSCode SSH
How to Fix a Blank White Command Prompt Screen
Fix Connection Timeout in Command Prompt
Chrome Profile Backup on Ubuntu: A Practical Guide
Nginx 502 Error Behind Cloudflare Troubleshooting
FFmpeg Audio Delay Correction Guide
Microsoft Teams Connection Error Fix Guide
Troubleshoot Authentication Error in CMD
Outlook Version Mismatch Fix
Fix Error 0xc004c003 via Command Prompt
Fix Windows Search Auto Start Not Working After Update
Resolve Windows Search Connection Refused on Network Drives
How to Fix a Blank White Command Prompt Screen
Fix Connection Timeout in Command Prompt
Chrome Profile Backup on Ubuntu: A Practical Guide
Nginx 502 Error Behind Cloudflare Troubleshooting
FFmpeg Audio Delay Correction Guide
Microsoft Teams Connection Error Fix Guide
Troubleshoot Authentication Error in CMD
Outlook Version Mismatch Fix
Fix Error 0xc004c003 via Command Prompt
Fix Windows Search Auto Start Not Working After Update
Resolve Windows Search Connection Refused on Network Drives