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

Fix Command Prompt Not Recognizing Commands

Outlook Invalid Configuration Troubleshooting Checklist

When Outlook shows an "invalid configuration" error, it usually means the email account settings ...

How to Fix PowerShell Login Loop Stuck at Sign In

You open PowerShell as an administrator, and instead of getting a prompt, you see a spinning circ...

How to Remove a Host Key from SSH Known Hosts

SSH warns or fails when a remote host's key changes—common after server rebuilds, IP reassignment...

Fix Command Prompt Proxy Settings 502 Bad Gateway

If you see a 502 bad gateway error when using command prompt tools like curl, npm, or git, the pr...

Outlook Cannot Connect to Server: Practical Fixes

When Outlook says it cannot connect to the server, email stops syncing and you may see a “Disconn...