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

How to Clear SSH Known Hosts and Fix Host Key Verification Failed

Fix SSL Certificate Errors in Windows Search

When Windows Search throws an SSL certificate error—often as 'The certificate is not valid' or 'A...

Fix Command Prompt 502 Bad Gateway Due to DNS Issues

If you're seeing a 502 Bad Gateway error while using Command Prompt to access a web service or AP...

Fix Outlook File Locked by Outlook.exe Not Responding

If you see an error that your Outlook data file (.pst or .ost) is locked because Outlook.exe is n...

Fix Microsoft Teams Connection Refused Due to Firewall Settings

When Microsoft Teams shows a 'connection refused' error, it usually means a firewall or proxy is ...

Chrome High CPU Usage on Windows 10: Troubleshooting Guide

You open Chrome and your fan kicks into high gear. Task Manager shows Chrome using 80-100% CPU, e...