In days past (read: the last ~25 years), I would have recommended Microsoft Networking Essentials / Networking Fundamentals as a general networking primer in Windows, but Microsoft has retired them! @ali-a981, if you're interested in learning more about networking in Windows or IP networking in general, the CompTIA Network+ courseware or legacy courseware/books published by Microsoft Press are a great place to start. This course appears to be Azure focused, but it should still be relevant to Windows 10: https://learn.microsoft.com/en-us/training/modules/network-fundamentals/. If you're looking for something deeper, the go to TCP/IP reference is TCP/IP Illustrated Volume 1: https://www.informit.com/store/tcp-ip-illustrated-volume-1-the-protocols-9780321336316. ... View more