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

Fix Microsoft Store Blank Screen When Opening an App

You launch an app from the Microsoft Store, and instead of the app window, you get a blank screen...

How to Fix PostgreSQL Connection Refused on Localhost

You try to connect to PostgreSQL on localhost and get connection refused. This usual...

Fix Windows Defender Rate Limit Error via Registry Edit

If Windows Defender shows a rate limit error—often with messages like "Threat service has stopped...

Windows Activation for Ubuntu Installation Guide

You installed Ubuntu alongside Windows and now Windows shows it's not activated. This is a known ...

Fix WSL Ubuntu Internet Not Working After Windows Restart