OS Lab (2) course is a complementary course that expands the skills acquired in the OS Lab 1 course. It aims to train students on operating systems, especially the "Linux" and provide advanced training on the "Windows" system. It allows experimenting the theoretical concepts given in the course Operating Systems 2 through practical examples. The main objectives of this course are: 1. Learn advanced Linux and user management. 2. Work on the process, memory, and storage management in Linux. 3. Experience with Windows server 2019 and Active Directory. 4. Acquire experience in virtualization software.