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

How to Create a package.json for Your npm Project

If you're starting a Node.js project, you'll need a package.json file. This ...

How to Enable Windows Defender Real-Time Protection via Group Policy

If Windows Defender real-time protection is turned off and grayed out, it's often because a G...

Fix Nginx Upstream Connection Refused Error

When Nginx returns upstream connection refused in your error logs, it means Nginx tr...

Windows Security App Not Opening: Practical Fixes

If the Windows Security app won't open—clicking the icon does nothing, or it crashes immediat...

Fix Discord Black Screen from Chrome Hardware Acceleration

Why Chrome Hardware Acceleration Causes Discord Black Screen

When Chrome uses hardware a...

Fix Nginx Configuration Test Failed: Duplicate Listen Error

When running nginx -t to test your configuration, you may see an error like "...