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

Check Which Process Is Using a Port on Windows

When a service or application fails to start because a port is already in use, you need to identi...

How to Set Up Certbot with Nginx on Ubuntu 22.04

If you're running Nginx on Ubuntu 22.04 and need a free SSL certificate, Certbot with the Nginx p...

Task Scheduler Setup: Avoiding Login Loop for Scheduled Tasks

You set up a scheduled task in Windows Task Scheduler, but now every time the task runs, you get ...

Fixing GitHub Actions Permission Denied for Git Commands

Fix Command Prompt Version Mismatch Error Code

When you see a "version mismatch" error in Command Prompt, it usually means the command you're tr...

Fix Windows Update Stuck at 0% Downloading

You click 'Check for updates' and see 'Downloading 0%' for an extended period. This is a common i...