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Daniel Petri

Petri Contributor

Renowned as the creator of the acclaimed Petri IT Knowledgebase back in 1999 Daniel Petri has become a distinguished figure in the IT realm, recognized for delivering reliable, expertise-driven content. This website - www.petri.com - not only embodies Daniel's extensive technical skills but also stands as a symbol of his dedication to sharing knowledge and guiding professionals through the dynamic world of information technology.

Over the past 25 years, Daniel Petri's career is characterized by his unwavering commitment to quality IT training, provision of diverse solution architectures, and maintaining a customer-first approach that ensures high levels of satisfaction. Daniel's client-centric mindset has always been a cornerstone of his career, delivering concrete results that spur his clients' growth and success. Daniel's strong technical writing skills are evidenced by the thousands of technical documents, help guides, manuals, and articles he has penned, all drawing from his broad IT and security-oriented background.

Daniel is currently Senior Training Manager at Semperis.

LATEST

Manually Migrating a VM Between Hyper-V Hosts

Last Update: Jun 05, 2025

In this article, Daniel explains how to manually move a virtual machine between Hyper-V hosts, including what considerations need to be made for a manual migration.

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Secure Active Directory Objects in Windows Server 2008/R2 ADUC

Last Update: Sep 04, 2024

Daniel discusses a new option available in Windows Server 2008/2008 R2 designed to protect Active Directory objects from accidental deletion. The option is available for all objects that are manageable through Active Directory Users and Computers (ADUC).

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Daniel Petri’s MCSE & System Administrator Interview Questions – Part 8 – Windows Server 2008/R2 Hyper-V and Virtualization

Last Update: Dec 03, 2024

Job interview coming up? Daniel continues his series on technical job interview questions for MCSE’s and System admins with a focus on Windows Server 2008/R2 Hyper-V and Virtualization topics.

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Error when Attempting to Remove Windows Server 2008 Server Core from Domain

Last Update: Sep 04, 2024

Daniel explains how to resolve Server 2008 R2 Server Core error: “The security database on the server does not have a computer account for this workstation trust relationship”

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How to Remove Libraries & Favorites from Windows Explorer in Server 2008 R2 & Windows 7

Last Update: Sep 04, 2024

Daniel shows readers how to edit the registry settings in Windows 7 so as to remove the Libraries and Favorites folders from Windows Explorer.

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Prepare your Domain for the Windows Server 2008 R2 Domain Controller

Last Update: Nov 19, 2024

ADPREP is a necessary tool used to prepare a forest and domain prior to installing a domain controller on a Windows Server 2008. Daniel takes users through the steps needed to run this valuable tool.

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Enabling Remote Management in Windows Server 2008 R2

Last Update: Dec 03, 2024

In this article, Daniel explains a handy new feature of Windows Server 2008 R2, which allows for remote management from another server or from a Windows 7 workstation, by using Server Manager.

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Fix “RPC Server is Unavailable” Error in Windows Server 2008 R2 Remote Disk Management

Last Update: Sep 04, 2024

Daniel outlines the important steps needed to remotely manage disks on a Windows Server 2008 R2 machine so as to avoid a “RPC Server is Unavailable” error.

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Daniel Petri’s MCSE & System Administrator Interview Questions – Part 7 – Windows Server 2008 R2 TS/RDS

Last Update: Dec 03, 2024

Daniel compiles the key questions interviewers need to ask and candidates should prepare for in an MCSE or system administrator job interview. In part 7 of this series, Daniel specifically covers Windows Server 2008/R2 TS/RDS questions.

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Daniel Petri’s MCSE & System Administrator Job Interview Questions – Part 5 – Exchange Server 2007/2010

Last Update: May 24, 2025

Daniel compiles the key questions interviewers need to ask and candidates should prepare for in an MCSE or system administrator job interview. In part 5 of his series, Daniel specifically covers off Exchange Server 2007/2010 interview questions.

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Daniel Petri’s MCSE & System Administrator Interview Questions – Part 6 – Windows Server 2008/R2 Active Directory

This is a part 6 of my MCSE and System Administrator job interview sample questions See previous parts at: Part 1 – Networking Part 2 – Windows Server 2003 Active Directory Part 3 – Exchange Server 2003 Part 4 – PC Technician Part 5 – Exchange Server 2007/2010 Like previous parts, this article set is…

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Defrag Windows 7 Quickly and Easily

Last Update: Sep 04, 2024

Although there are many different tools that one can use to defrag a partition or hard disk in Windows 7, Daniel outlines 2 for our readers: a built in tool and a free 3rd party tool, Auslogic Disk Defrag.

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