IT Knowledgebase Articles

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Error Code 43: Your GPU Isn’t Working? Try These Fixes

If your graphics card suddenly stops working and Microsoft Windows displays error code 43, do not panic. What is device manager error code 43? Error code 43 is a generic hardware error in Windows 10 and Windows 11. It means the operating system detected that your GPU (or another device) reported a problem, and Windows…

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What Is a DHCP Reservation? Demystifying Network Address Management

Learn what a DHCP reservation is, its function, practical applications, and how you can leverage it effectively in your network. What is a DHCP reservation, and why does it matter? While DHCP’s dynamic nature is a blessing for general-purpose devices, there are specific instances where you need a particular device to always have the same…

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Introducing Copilot Agents: What You Need to Know

Last Update: Jan 05, 2026

Imagine finishing your workday and realizing that a Copilot agent has already summarized your meetings, scheduled follow-ups, and drafted your next client email, without you lifting a finger. That’s the reality Copilot agents are bringing to Microsoft 365. What is a Copilot Agent? A Copilot agent is an AI enabled bot that lives inside of…

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PowerShell

From Clicks to Code: How Graph X-Ray Transforms the Way Admins Work with the Microsoft Graph

I asked Merill Fernando, the creator of Graph X-Ray, to talk me through how the tool came to be and some use case scenarios. Microsoft Graph is the unified API that connects data across Microsoft 365, from Entra ID and Teams to Exchange, Intune, and more. It’s the foundation for automation, reporting, and integration across…

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Security

Microsoft Identity Manager: Your Best Options Beyond 2029

Last Update: Nov 04, 2025

Microsoft has announced that extended support for Microsoft Identity Manager (MIM) will end in 2029. For many organizations, this feels like the closing of a long chapter. MIM has been the backbone of identity synchronization, certificate management, and self-service provisioning for well over a decade. But just as with Forefront Identity Manager (FIM) before it,…

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Maester: Turning Security Configuration into Code

What is Maester? Maester is an open-source framework designed to help Microsoft 365 and Entra administrators continuously validate the security and configuration of their environments, before things break. I spoke with Merill Fernando about how Maester came to be and how it is used today by thousands of enterprises to maintain effective security configurations across…

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PowerShell

Use New-ADUser to Create New Active Directory Users with PowerShell

Last Update: Dec 17, 2025

New-ADUser creates users at scale, sets attributes, places them in the right Organizational Units (OUs), assigns passwords, and even adds them to groups, all programmatically. Let’s get into how to learn more about New-ADUser and elevate your AD management skills from good to great. Create a new Active Directory user with New-ADUser Here’s the basic…

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Network Monitoring Tools: Essential Guide to Keeping Your Infrastructure Healthy

Last Update: Oct 22, 2025

In this post, I’ll explain what network monitoring tools are, why they’re important for keeping your IT systems running smoothly, how security plays a role, and how to choose and implement the right solution. I’ll cover key features, popular tools, best practices, and common mistakes to help you build a robust monitoring strategy. What are…

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Windows Sudo: Elevating Privileges the Linux Way in Windows

With the introduction of Sudo for Windows, Microsoft has brought a familiar Linux privilege escalation tool to Windows users. It enables administrators and power users to execute commands with elevated permissions without switching contexts, streamlining workflows, and enhancing security. This article examines how Windows Sudo operates, its advantages, configuration options, and its comparison to traditional…

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From IT Burden to Business Value: Rethinking Email Signatures in Microsoft 365

Last Update: Jul 01, 2026

Today’s IT leaders are asked to do more with less: keep environments secure, ensure compliance across jurisdictions, support hybrid work, and free up time for transformation projects. Yet their teams still get dragged into low-value requests that chip away at capacity. One of the most overlooked examples? The corporate email signature. At first glance, it…

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