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

Windows Activation 502 Bad Gateway: Step-by-Step Fix

When you try to activate Windows and see a 502 Bad Gateway error, it usually means the activation...

Fix Windows Terminal Permission Denied File Locked Error

How to Fix Outlook Not Opening on Mac

If Outlook for Mac refuses to open—crashes on launch, shows a beachball, or simply disappears—you...

NVM Troubleshooting Checklist for Windows Users

If you use NVM (Node Version Manager) on Windows and run into problems like Node not being recogn...

Fix Microsoft Teams High CPU Usage on Mac

If your Mac’s fans spin up and the system feels sluggish while Microsoft Teams is open, you’re li...

How to Fix Windows Update Error 404 Not Found

You see error 404 when checking for updates in Windows Update. This usually means the update serv...