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

Docker Daemon Not Running: A Beginner's Checklist

If you're new to Docker and see an error like Cannot connect to the Docker daemon or...

Fix OBS Black Screen with No Source Detected

If you're seeing a black screen in OBS and the message 'No source detected,' you're not alone. Th...

Reset Command Prompt to Default Settings: Step-by-Step Guide

When Command Prompt starts with the wrong window size, font, colors, or custom paths, it's often ...

Task Scheduler 502 Bad Gateway: Causes and Fixes

If you see a 502 Bad Gateway error when running a scheduled task that calls a web service or API,...

OpenVPN Connection Failed: Check Firewall Settings

You see "connection failed" in your OpenVPN client log. The server is reachable, but the handshak...

Fix Yarn Install Network Timeout on Windows