In this episode of Defrag Tools, Andrew Richards and Chad Beeder are joined by Alex Ionescu and Pavel Yosifovich, authors of the Windows Internals 7th Edition Part 1 book. We talk to Alex in the Channel 9 Studio and to Pavel over Skype from Israel. We cover the history of the Windows Internals book series, Alex's involvement in writing the 6th Edition and their co-authorship of the 7th Edition. The Windows Internals 7th Edition Part 1 is based on Windows 10 Creators Update, and is a must-have for any Troubleshooter or Developer! The Part 1 book covers: Understand Windows system architecture and its most important entities, such as processes and threadsExamine how processes manage resources and threads scheduled for execution inside processesObserve how Windows manages virtual and physical memoryDig into the Windows I/O system and see how device drivers work and integrate with the rest of the systemGo inside the Windows security model to see how it manages access, auditing, and authorization, and learn about the new mechanisms in Windows 10 and Windows Server 2016