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

How to Fix Chrome Connection Refused Error

When you see 'ERR_CONNECTION_REFUSED' in Chrome, it means the browser tried to connect to a serve...

Windows Activation for Ubuntu Installation Guide

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

Fix Outlook High CPU Usage Caused by Antivirus Scanning

Symptoms and Likely Cause

You notice Outlook consuming 50% or more CPU, making your syste...

How to Change Default Profile in Windows Terminal

If you open Windows Terminal and it always starts with PowerShell when you'd rather use Command P...

Chrome 404 Not Found Error After Update: How to Fix

After a Chrome update, some users see a '404 Not Found' error on pages that worked before. This u...

Fix VirtualBox Kernel Driver Not Installed Error

When you try to start a virtual machine in VirtualBox and see "Kernel driver not installed (rc=-1...