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

Ubuntu Windows Security Compatibility Troubleshooting Guide

If you run both Ubuntu and Windows on the same machine—either in a dual-boot configuration or thr...

How to Fix Windows Activation Error 0xc004c003 After Motherboard Swap

After replacing your motherboard, Windows may show activation error 0xc004c003. This means the ac...

How to Fix Windows Security Backup Not Working

Windows Security backup (part of Windows Backup or File History) may stop working for several rea...

Fix Windows Terminal Service Unavailable: Setup Guide

When you try to connect to a remote desktop or terminal session and see 'Terminal Service unavail...

How to Set Up Remote Desktop on Windows 11

Before You Start

Remote Desktop lets you connect to your Windows 11 PC from another devic...

Windows Defender Not Working After Update: Checklist

After a Windows Update, Windows Defender (now called Microsoft Defender Antivirus) may stop worki...