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

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

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

Microsoft Teams DNS Error Fix Checklist

If Microsoft Teams fails to connect with a DNS error—often showing "Can't connect" or "Something ...

BitLocker Recovery Key Not Working: Practical Fixes

You're staring at the BitLocker recovery screen, you type in the 48-digit key, and it says it's w...

Windows Defender Rate Limit Error Troubleshooting Checklist

You might see a Windows Defender rate limit error when scanning files or updating definitions. Th...

Fix Windows Defender Update Error 0x80240022

You try to update Windows Defender, but it fails with error 0x80240022. This usually means Window...

Windows Terminal Command Line Arguments Not Working: Fixes

You've set up Windows Terminal with custom command line arguments, but they're not being applied....