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...

Fix Windows Defender Access Denied Error on Windows 11

You open Windows Security on Windows 11 and see 'Access Denied' or 'This app has been blocked by ...

OpenVPN Connection Failed: Check Firewall Settings

You see "connection failed" in your OpenVPN client log. The server is reachable, but the handshak...

Fix 'Command Not Recognized' Error in Windows Terminal

You type a command in Windows Terminal and get '...' is not recognized as an internal or ex...