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Avatar photoRobert Allen

Founder, Owner, and Product Development at Active Directory Pro.

Robert has extensive experience in Windows System Administration, Office 365, Azure, Cisco switches and routers, VMWare, PowerShell, L2, and L3 networking, network security, Cisco ASA, and Fortigate firewalls. Robert Allen holds several IT certificates including, MCSE, MSA, CCNA, CCNA Security, and CompTIA Security +.

Since launching Active Directory Pro, Robert has published several detailed how-to guides and best practices that have become very popular. Active Directory Pro is now one of the most popular resources for information on Active Directory, Microsoft Servers, and related technologies.

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October 19, 2024

Find Empty Groups in Active Directory

In this guide, I’ll show you how to find empty groups in Active Directory using PowerShell and the AD Pro … Read more

October 19, 2023

GPO Cleanup: The Definitive Guide

This is a step by step guide to cleaning up group policy. In this guide, I’ll show you how to … Read more

how to hide users from the global address list (GAL)

November 1, 2024

Hide Users From Global Address List (GAL)

In this guide, you will learn how to hide users, groups, and shared mailboxes from the Office 365 Global Address … Read more

How to get a list of exchange online mailboxes

January 20, 2023

How to Get Exchange Online Mailboxes

In this guide, you will learn how to get a list of exchange online mailboxes using PowerShell and the Exchange … Read more

how to create a scheduled reboot on windows

October 19, 2023

How to Schedule Windows Reboot using Group Policy

In this guide, you will learn how to schedule a Windows reboot using group policy. This guide will work with … Read more

windows file server best practices and tips

April 26, 2024

Top 10 Windows File Server Best Practices

In this guide, I share my Windows File Server Best Practices and tips. These tips will help you in creating, … Read more

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Recent Articles

  • Remove Attribute Value in Active Directory
  • Configure Interactive Logon Message Using Group Policy
  • Find Active Directory Users with Empty (Null) Attributes
  • Disable Password Never Expires for Multiple Users
  • How to Force Replication Between Domain Controllers

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