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.

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.

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).

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.

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”

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.

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.

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.

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.

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.

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.

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…

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.