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

Check if a Port Is Already Allocated Using Command Prompt

When you start a service or application and get an error like "Address already in use" or "Port i...

Fixing PowerShell Remote Execution Failures on a Network

Outlook 404 Not Found Web App: Fixes and Checks

If you're seeing a 404 Not Found error when trying to open Outlook on the web (formerly Outlook W...

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

When you run Windows Update and see a 502 Bad Gateway error, it usually means th...

Fix Chrome Update Error Code 4: Step-by-Step Guide

If you see error code 4 when updating Chrome, it usually means the updater couldn't write to the ...

Windows Activation for Ubuntu Installation Guide

You installed Ubuntu alongside Windows and now Windows shows it's not activated. This is a known ...