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

How to Fix Windows Update Stuck on Loading Black Screen

You start your PC, see the Windows logo, then it goes black with a spinning circle that never end...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...

Windows Activation Backup and Restore Configuration Guide

If you're planning a hardware upgrade, reinstalling Windows, or just want to avoid activation hea...

Fix Ubuntu Remote Desktop Permission Denied Error

When you try to connect to an Ubuntu machine via Remote Desktop (RDP or VNC) and get a 'permissio...

Fix Windows Security Offline Installer Error 0x80070643

You're trying to install Windows Security (formerly Windows Defender) using an offline installer,...

Windows Terminal vs Command Prompt: Which One Should You Use?

If you've ever opened a command-line tool on Windows, you've probably used Command Prompt (cmd.ex...