How-To Guides
Andrew Armstrong
Andrew Armstrong is a UK-based IT professional with 26+ years of hands-on experience in Windows, Windows Server, SCCM/ConfigMgr, Active Directory, PowerShell, and enterprise infrastructure.
He founded TechyGeeksHome in 2010 and has published over 1,500 practical guides covering real-world IT problems and solutions. When not solving IT problems,
Andrew develops free Windows utilities including Ultimate Settings Panel, which has been downloaded over 850,000 times.
How-To Guides
How-To Guides
Windows 11 Remote Desktop: Enabling RDP Between PCs
How-To Guides
DHCP Server Configuration: Windows Server Mastery
How-To Guides
Active Directory Tools: Installation, Management, and Automation
How-To Guides
Windows Update Error 0x80070002: A Step-by-Step Fix
How-To Guides
How to Reinstall .NET Framework on Windows Server 2022
How-To Guides
Windows Remote Desktop Group Policy: 2025 and Beyond
How-To Guides
Free Software Alternatives: 10 Picks You Didn’t Know Existed
How-To Guides
Windows Server Core Administration: Command Line Only
How-To Guides
PowerShell Active Directory Management in 2025: The Definitive Guide
How-To Guides
Hyper-V Windows Server 2025 Setup & Configuration Guide
How-To Guides