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

Fix Command Prompt Version Mismatch Error

When you open Command Prompt and see a version mismatch error, it usually means the system cannot...

Fix PostgreSQL Password Authentication Failed in pg_hba.conf

When you see psql: FATAL: password authentication failed for user "username", it usu...

Fix 'Port Already Allocated' Error in Microsoft Teams

When starting Microsoft Teams, you might see an error like "Port already allocated" or "The proce...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...

Remote Desktop Token Expired: How to Fix It

When you see a 'token expired' error in a remote desktop session, it usually means the authentica...

Windows Security Error Checklist: Common Fixes

If you're seeing a Windows security error—like "Access Denied", "Windows Security Center service ...