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

Ubuntu Windows Update Configuration Checklist

If you run Ubuntu alongside Windows in a dual-boot setup or use a virtual machine, you may need t...

Fix Windows Defender Module Not Found Error

You open Windows Security and see an error: "Module not found" or "Windows Defender module not fo...

Fix KMS Activation Error: Port 1688 Already in Use

Fix Microsoft Teams Stuck on Loading After Update

After a recent update, Microsoft Teams may get stuck on the loading screen. This typically happen...

Fixing Microsoft Teams Authentication Error CAA2000C

You try to sign in to Microsoft Teams and see error code CAA2000C, often accompanied by a message...

How to Fix Microsoft Store Stuck in Login Loop on Windows 11

You open Microsoft Store on Windows 11, try to sign in, and it keeps asking for credentials again...