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: Sep 04, 2024
Need to manually restart Windows Explorer shell in both Windows 7 and Windows 8? Daniel Petri shows us how in this handy how-to article.

Last Update: Sep 04, 2024
Learn how to search using file size filters in Windows 8 by using some little-known File Explorer options in this how-to article by Daniel Petri.

Last Update: Sep 04, 2024
You might need to rename and hide Windows services for security reasons. This short how-to article by Daniel Petri shows you how to perform both tasks.

Last Update: Sep 04, 2024
Having performance issues? You may be impacted by the Windows Server 2012 Automatic Maintenance functionality. Learn how to troubleshoot in Daniel Petri’s latest article.

Last Update: Jun 05, 2025
Daniel Petri provides some tools and techniques to test connectivity from a Windows PC to an Active Directory Domain Controller.

Last Update: May 09, 2025
Daniel Petri shares three different ways to enable the helpful Telnet client for Windows Server 2012 and Windows 8 to meet your IT needs.

Last Update: Sep 04, 2024
Need help with DNS forwarding? Daniel Petri points out some issues with how DNS forwarding is handled in Windows Server 2008/2012 that you should be aware of.

Last Update: Sep 04, 2024
In part two of our series on DNS forwarding, learn how to configure DNS forwarders in Windows Server 2012 R2 using the Windows GUI and the command prompt.

Last Update: Sep 04, 2024
Need to know what a DNS forwarder is? Daniel Petri compares it to root hints, and then offers some best practices on how to use DNS forwarders effectively.

Last Update: Dec 03, 2024
In this post, find out how to enable HTTPS on Certificate Authority for Web Enrollment on Windows Server 2008/2012, how to create a digital certificate template, and more!

Last Update: Sep 04, 2024
Irritated by error messages? Find out how to solve the pesky “This Web Browser Does Not Support the Generation of Certificate Requests” error in this quick tutorial.

Last Update: Sep 04, 2024
Missing the Windows Key + X shortcut context menu in Win 8.1? Discover how to find it on in this easy instructional article.