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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

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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Datacenter networking

RAID 5 vs. RAID 10: What’s the Difference and Which One Is Best?

Last Update: Jul 31, 2024

Key takeaway: RAID 5 provides good read performance and it can tolerate one disk failure in a minimum 3-disk array. RAID 10 provides fast read and write performance and it can potentially tolerate up to 2 drive failures in a minimum 4-disk array. RAID 5 and RAID 10 are two different redundant array of independent…

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Security

ManageEngine ADSelfService Plus: Protect On-Premises and Cloud Services from Password Attacks with Multi-factor Authentication

Last Update: Apr 17, 2024

Advanced password attacks, like brute force and those launched by malicious insiders, are devastating the security of today’s enterprises and cloud services. ADSelfService Plus from ManageEngine can protect web properties from such attacks with multi-factor authentication (MFA). Multi-factor authentication is the best way to protect Active Directory and cloud-based user accounts As the impacts of…

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Datacenter networking

How to Choose Between RAID 0 Vs. RAID 1

Last Update: Jun 18, 2025

RAID 0 and RAID 1 are two of the standard RAID storage levels that you can use to create large data stores by combining multiple disk drives. In this article, we’ll explain the main differences between RAID 0 and RAID 1 and help you determine how to choose the best RAID level for your projects….

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Microsoft 365 Apps

Should You Upgrade to Office 2021 LTSC or Microsoft 365 Apps?

Last Update: Jan 17, 2023

With earlier versions of Microsoft Office reaching end-of-support milestones throughout 2023, IT Pros need to offer their managers recommendations on how to proceed – Upgrade to Office 2021 LTSC or migrate to the subscription model, Microsoft 365 Apps for enterprise? Read this article to find out. We all know that Microsoft has steadily increased the…

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Windows

How to Use Windows File Recovery to Recover Lost Files

Last Update: Jan 17, 2023

Windows File Recovery is a free command-line utility for recovering deleted files in Windows. If you have lost files on your PC after accidentally deleting them, this article explains how to use Windows File Recovery to recover them in a couple of steps. Windows File Recovery (WFR) is a newer file restore utility Microsoft released…

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Windows 11 2022 Update

Action1 Review – Free Cloud-Native Patch Management for Windows

Last Update: Apr 16, 2024

In this review, we show you how you can use Action1’s free platform to patch Windows and third-party applications. See how it works here. What is Action1 and why do I need it? Action1 is a class-leading patch management software with a robust feature set that automates the deployment of security updates and patches to…

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Network Security

How to Restore Deleted Items Using the Active Directory Recycle Bin

Last Update: Dec 09, 2025

The Active Directory Recycle Bin is a tool that IT pros can use to recover lingering objects on a network. In this article, I’ll explain how to enable and use the Active Directory Recycle Bin and recover objects without the need to use System State backups. There are two main ways to enable the Active…

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