How to Activate Windows with a Digital License
If you've upgraded to Windows 10 or 11 from a previous version, or bought a new PC with Windows p...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Chrome ERR_TUNNEL_CONNECTION_FAILED Proxy Error
When Chrome shows ERR_TUNNEL_CONNECTION_FAILED, it usually means a proxy connect...
Fix Windows Terminal Profile Reset After Cache Clear
You clear the Windows Terminal cache to fix a display or performance issue, and suddenly your car...
Fix Nginx 502 Bad Gateway Behind Cloudflare
If you're seeing a 502 Bad Gateway error on a site that uses both Nginx and Clou...
How to Allow an App Through Windows Defender Firewall
If an app can't connect to the internet or network, Windows Defender Firewall may be blocking it....
How to Fix OpenVPN Certificate Verification Failed
You see "certificate verification failed" when connecting to an OpenVPN server. This usually mean...
Issue queue
SitemapTroubleshooting Teams Error Code CXA20001
Fix 'Access Denied' When Setting Windows Permissions
How to Clear Windows Terminal Cache Without Permission Errors
Restore Deleted OneDrive Files from Recycle Bin
How to Resolve Windows Backup Error 0x80070001
PowerShell Version Mismatch Troubleshooting Checklist
Resolve npm Install Node Version Error
BitLocker Update Troubleshooting Checklist
Windows Update Repair Guide
Resolve Windows Activation Error 0x8007007b on Ubuntu
Troubleshooting Postman SSL Errors in Windows 10
How to Resolve BitLocker Authentication Failed in Setup
Fix 'Access Denied' When Setting Windows Permissions
How to Clear Windows Terminal Cache Without Permission Errors
Restore Deleted OneDrive Files from Recycle Bin
How to Resolve Windows Backup Error 0x80070001
PowerShell Version Mismatch Troubleshooting Checklist
Resolve npm Install Node Version Error
BitLocker Update Troubleshooting Checklist
Windows Update Repair Guide
Resolve Windows Activation Error 0x8007007b on Ubuntu
Troubleshooting Postman SSL Errors in Windows 10
How to Resolve BitLocker Authentication Failed in Setup