Sami Laiho is one of the world's leading professionals in the Windows OS. Sami has been working with and teaching OS troubleshooting, management, and security for more than 15 years. Sami's session was evaluated as the best session in both TechEd North America and TechEd Europe in 2014 and in TechEd Australia 2013. Sami's session in TechEd Europe 2013 was evaluated as the best session by an external speaker.