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

Fix Windows Defender Security Center Module Missing Error

You open Windows Security and see a blank page or an error saying the security center module is m...

Fix 'Connection Refused' Error When Command Prompt Not Working

You type a command in Command Prompt and get "connection refused" or "No connection could be made...

Fix Windows Defender Cache Size Too Large

If you notice that Windows Defender's cache folder is eating up gigabytes of space, you're not al...

How to Fix Windows Security Network Error on Startup

If you see a Windows Security network error every time your PC starts, you're not alone. The erro...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

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

How to Fix Windows License Transfer to New Computer Issues

If you're trying to move your Windows license to a new computer and running into activation error...