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

Command Prompt Setup Guide for Beginners

What is Command Prompt?

Command Prompt is a text-based interface in Windows that lets you...

Fix Windows Defender Port Already Allocated Error in Command Line

If you see "port already allocated" when trying to run Windows Defender from the command line, it...

Stop Microsoft Teams High Memory Usage in Background

If your computer feels sluggish and Task Manager shows Microsoft Teams using hundreds of MB or ev...

Fix Nginx 404 on All Pages Except Index

If your Nginx server loads the index page but returns 404 on all other pages, the issue is almost...

Fix OneDrive Sync Connection Refused on Windows 11

If you see "connection refused" when OneDrive tries to sync on Windows 11, the app can't reach Mi...

Fix Firefox Not Responding Due to High Memory Usage

If Firefox stops responding or your system slows down, high memory usage is often the cause. This...