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

Fix Windows Security Not Opening Error 0x80073cfc

When you double-click Windows Security and nothing opens, or you see error 0x80073cfc, it usually...

Fix Windows Security Not Launching at Startup

You restart your PC and notice Windows Security (formerly Windows Defender) isn't running. The ic...

BitLocker Recovery Key 404 Not Found on Windows 10: Fixes

If you're seeing a '404 Not Found' error when trying to access your BitLocker recovery key on Win...

How to Set Up Windows Terminal with Custom DNS

If you're using Windows Terminal and want to use custom DNS servers (like Cloudflare's 1.1.1.1 or...

OneDrive Sync Ubuntu: Setup Checklist for New Users

Before You Start

OneDrive doesn't have an official Linux client. Ubuntu users rely on the...

Fix Microsoft Teams Internet Connectivity Check Not Working

You open Microsoft Teams and see a message that you're offline or that Teams can't verify your in...