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

Fix Windows Security High Memory Usage (MsMpEng.exe)

You open Task Manager and see Windows Security (the process is MsMpEng.exe) using 500 MB or more ...

Enable Windows Security Manually When It Fails to Start

If Windows Security (formerly Windows Defender) fails to start, you may see an error like "This a...

Fix CMD Service Unavailable Due to Group Policy

Situation

You open Command Prompt and see an error like "Command Prompt has been disabled...

How to Fix Windows Security 502 Bad Gateway Error

When you open Windows Security and see a “502 Bad Gateway” error, it means the app can’t connect ...

Fix npm ERR! code EACCES on Windows 10: Permissions Guide

If you see npm ERR! code EACCES while installing or updating packages on Windows 10,...

Fix OpenVPN Authentication Error: Step-by-Step Guide

If you're seeing "authentication error" when trying to connect to an OpenVPN server, the connecti...