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

Firefox Not Responding: Clean Reinstall Guide

If Firefox freezes, crashes, or shows a "not responding" message repeatedly, a clean reinstall ca...

MongoDB Compass Cannot Connect to localhost:27017 – Fixes

You open MongoDB Compass, enter localhost:27017, click Connect, and get an error: “c...

How to Fix 'npm command not found' on Mac

Fix Windows Terminal 'Cannot Connect to Localhost: Permission Denied'

You open Windows Terminal, try to connect to a service running on localhost, and get a 'permissio...

Fix Windows Defender Login Loop in Safe Mode

If Windows Defender keeps asking you to sign in repeatedly—even in Safe Mode—the problem is usual...

Fix Windows Security High CPU Usage on Windows 10

If your Windows 10 PC is running slow and Task Manager shows Windows Security (or Antimalware Ser...