Knowledge base for software setup, errors, and daily tool work.

Fix Microsoft Teams Service Unavailable After Update

After a Teams update, you might see a 'Service Unavailable' error when trying to sign in or use t...

Fix Windows Defender Connection Refused via Registry

When Windows Defender shows a "connection refused" error, it usually means the Windows Security C...

How to Fix Windows Update Error 404 Not Found

You see error 404 when checking for updates in Windows Update. This usually means the update serv...

Windows Update High CPU Usage Troubleshooting Checklist