How to Fix 'ERR_TUNNEL_CONNECTION_FAILED' on Chrome for Mac
If you see ERR_TUNNEL_CONNECTION_FAILED in Chrome on your Mac, it usually means ...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Windows Search Invalid Configuration Registry Error
If Windows Search stops working and you see an error about invalid configuration in the registry,...
Fix Windows Search Token Expired Error 0x80090016
If you see the error “Windows Search Token Expired” with code 0x80090016, it usually means the se...
Chrome Download Stuck at 99%: Practical Fixes
You're downloading a file in Chrome, it reaches 99%, and then just sits there. The progress bar w...
OneDrive Sync Permission Denied: Troubleshooting Checklist
You try to sync a file or folder in OneDrive and get a "permission denied" or "access denied" err...
How to Fix Windows Security Not Working
Windows Security (formerly Windows Defender) may fail to open, show a blank page, or refuse to up...
Issue queue
SitemapFix yarn ETIMEDOUT Error During Installation
Edge Browser Update Stuck at 0%? Here's How to Fix It
Checklist for Resolving Chrome Profile 504 Timeout
How to Resolve Teams 404 Error with Cache Reset
Task Scheduler Log File Missing: How to Troubleshoot
Fix Chrome Profile 404 Not Found Error
How to Refresh Auth Token Using PowerShell
SSH Timed Out from Windows to Linux: Causes and Solutions
How to Fix SSL Certificate Error in Microsoft Store via Chrome
Command Prompt Slow Startup Fixes
Outlook Port Already Allocated Error Fix
Teams Migration Missing Data: Fixes and Checks
Edge Browser Update Stuck at 0%? Here's How to Fix It
Checklist for Resolving Chrome Profile 504 Timeout
How to Resolve Teams 404 Error with Cache Reset
Task Scheduler Log File Missing: How to Troubleshoot
Fix Chrome Profile 404 Not Found Error
How to Refresh Auth Token Using PowerShell
SSH Timed Out from Windows to Linux: Causes and Solutions
How to Fix SSL Certificate Error in Microsoft Store via Chrome
Command Prompt Slow Startup Fixes
Outlook Port Already Allocated Error Fix
Teams Migration Missing Data: Fixes and Checks