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

How to Fix PowerShell Port Already Allocated Error

When you try to start a TCP listener or run a script that binds to a specific port in PowerShell,...

Fix High CPU Usage by MsMpEng.exe (Windows Defender)

If your system feels sluggish and Task Manager shows MsMpEng.exe using 30–100% CPU, Windows Defen...

Fix Chrome Profile Connection Refused Error

You open Chrome and see "Connection refused" or "ERR_CONNECTION_REFUSED" for every site, or only ...

Fix npm ERR! code EACCES on Windows 10: Permissions Guide

If you see npm ERR! code EACCES while installing or updating packages on Windows 10,...

How to Fix Microsoft Teams Microphone Not Working on Windows 10

If your microphone isn't working in Microsoft Teams on Windows 10, you're not alone. This issue o...

How to Fix '404 Not Found' Error in Windows Command Prompt