Checklists for software errors, setup, and tool workflows.

How to Fix 'npm command not found' on Mac

If you type npm in Terminal and see zsh: command not found: npm (or

How to Fix Command Prompt Not Opening in Windows

When Command Prompt (cmd.exe) refuses to open—either by clicking, typing 'cmd' in Run, or via the...

Remote Desktop Not Working After Windows Update: Fixes

You update Windows, reboot, and suddenly Remote Desktop won't connect. This is a common frustrati...

Microsoft Teams Audio Not Working: Step-by-Step Fixes

When Microsoft Teams audio stops working, you might hear nothing from a call, your microphone fai...

MySQL Connection Refused on Port 3306: Causes and Fixes

If you're seeing "connection refused" when trying to connect to MySQL on port 3306, the MySQL ser...

OneDrive Sync Ubuntu: Setup Checklist for New Users

Before You Start

OneDrive doesn't have an official Linux client. Ubuntu users rely on the...