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Michael Reinders

Petri Contributor

Michael has been an IT Pro since 1998. He has worked predominantly in the Windows world including client and server operating systems, on-prem systems engineering (AD, DNS, etc.), and over the last ten years or so has embraced and immersed himself in all things Microsoft 365 - including Exchange Online, SharePoint Online, Teams, OneDrive, and Microsoft Entra ID. He has written articles here on Petri based on these technologies. Michael strives to help other IT Pros with getting more efficient (especially with PowerShell) in their day-to-day tasks and offering solid assistance on larger projects.

LATEST

Windows

How to Install WSL2 on Windows 10 and Windows 11

The Windows Subsystem for Linux 2 (WSL2) allows Windows 10 and Windows 11 users to run a Linux distribution without using a virtual machine. Recent versions of Windows 10/11 make it very easy for developers to get started with WSL2 and run Linux repositories natively. In this article, I’ll explain how to install WSL2 on…

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Microsoft Stream

What is Microsoft Stream?

Microsoft Stream, which is part of Microsoft 365, is a video creation and collaboration service available with nearly all license and pricing plans. Learn about its noteworthy features including the ability to record your screen and yourself, catch up on your company’s Teams meeting recordings, and distribute your videos across your Microsoft 365 tenant. What…

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Cloud Computing and Security

How to Use Microsoft Entra Cloud Sync (Azure AD Connect Cloud Sync)

Last Update: Sep 03, 2025

Many of you have been using Azure Active Directory Connect to manage your hybrid identities and synchronization of users from Active Directory to Azure Active Directory (recently renamed Microsoft Entra ID). This modern technology is called Azure AD Connect cloud sync. In this article, I’ll walk you through the installation and basic configuration of Azure…

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Hero Approved Microsoft Lists - 3

What is Microsoft Lists? A Productivity Guide

Last Update: Dec 03, 2024

Microsoft Lists is the evolution of the SharePoint List feature. Several years ago, the Microsoft brain trust set out to make this ultra-powerful tool more accessible to the masses. By removing ‘SharePoint’ from the marketing pages, and making it ‘an app’, they succeeded in surprisingly productive ways. In this article, I will explain what is…

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Windows

How to Enable Hyper-V in Windows 10

Last Update: Jun 08, 2025

Windows 10 Pro, Enterprise, and Education editions contain a free virtualization software named Hyper-V. The underlying code works nearly the same as what’s provided in Windows Server. In this article, I will discuss how to enable Hyper-V on Windows 10, how to create your first virtual machine, and briefly talk about nested virtualization. How to…

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Cloud Computing

How to Use OneDrive for Business: A Complete Guide

Last Update: Jun 06, 2025

Installing and using OneDrive for Business will help your users be more productive with their files, from any place with an Internet connection. Do they know how to access the OneDrive website? Do they know how to use the OneDrive sync app in Windows? Read on to discover everything you need to know about how…

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Cloud Computing

Windows File Sharing with SMB: Port 445, 139, 138, and 137 Explained

Last Update: Sep 14, 2026

Many IT pros probably take for granted sharing files on their predominantly Windows environments and local area networks. Although several protocols are available, Server Message Block (SMB) is clearly the most prevalent. This article examines how Windows file sharing works over ports 445, 139, 138, and 137. Quick overview of SMB SMB is a client‑server…

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Cloud Computing and Security

LDAP, OpenLDAP, and Active Directory: What’s the Difference?

Last Update: Jun 06, 2025

LDAP vs Active Directory and OpenLDAP are the most used identity and access management solutions today. In this article, we’ll explain how they work and help you determine which one is the right choice for your network. LDAP vs Active Directory: What’s the difference? In general, there’s a pretty good chance that you’re more familiar…

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Windows

How To Find Windows 10 Stop Codes and Fix Errors Quickly

Last Update: Jun 18, 2025

Windows 10 doesn’t reliably give you easy access to stop codes when it crashes. Plus, these codes may flash on your screen for just half a second! In this guide, we’ll show you how to find Windows stop code fix methods, understand the reasons behind Windows crashes and guide you to solidify your Windows reliability…

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Cloud Computing

What Are the UPN and sAMAccountName User Account Attributes?

Last Update: Feb 01, 2023

The UPN and sAMAccountName are user account attributes in Active Directory. In this article, I’ll explain how these two user account attributes work and how the username and user logon name can be used in your organization. What are user naming attributes in Active Directory? In the world of Active Directory, there are two core…

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Network Security

How to Export Active Directory Users to CSV With PowerShell and ADUC

Last Update: Jun 07, 2025

In this article, I’ll show you how to export Active Directory users to a CSV file using PowerShell and Active Directory Users and Computers (ADUC). Using PowerShell is recommended as IT Pros can use it to extract task-specific information about a subset or all of their users from Active Directory. This can be really helpful…

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Microsoft 365 hero approved

Collaborating with Microsoft 365: File Sharing, Real-Time Co-Authoring, and Microsoft Loop Components

Microsoft 365 includes powerful collaboration features that allow teams to work on and share Office documents more easily than ever before. But do you understand how file sharing works within Microsoft 365 and how to manage and secure your files?  In this article, we’ll take you through the basics of file sharing and collaboration in Microsoft…

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