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

SCCM – How to Create a DCM Item to Detect If the Firewall Is Off

SCCM Task Sequence Error – Can’t find script engine VBScript

WSUS Installation Errors on Microsoft Server 2012

SCUP – Failed to connect to the update server error

SCCM – Time Zone Codes

Remove Deny Permissions from Exchange Mailbox using Powershell

How to Show Shoretel User Licenses Allocations

Export Exchange Mailbox Address Details to CSV

vCenter Appliance fsck failed

SCCM OSD Fails with Error 80220005 at the “Apply Windows Settings” step

SCCM Distribution Point Pre-Requisite Powershell Script

Windows 10 – “Disable apps to help improve performance” message