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

PowerShell High CPU Usage: Setup and Optimization Guide

You launch PowerShell and notice your CPU usage spikes to 80% or more, even when you're not runni...

Fix 'Permission Denied' When Opening System32 in Command Prompt

How to Fix Command Prompt Login Loop Using Safe Mode

If you're stuck in a login loop—where Windows logs you out immediately after signing in—you can o...

Docker Daemon Not Running on Mac M1: Practical Fixes

If you're on a Mac with Apple Silicon (M1 or M2) and see "Docker daemon not running" when you try...

Fix Windows Security Blank Screen After Update

After a Windows update, some users open Windows Security and see only a blank white or gray scree...

How to Allow an App Through Windows Defender Firewall

If an app can't connect to the internet or network, Windows Defender Firewall may be blocking it....