If you are a student, an office worker or any standard user who is using desktop edition of Windows, just skip this post and please do not follow the instructions.In this way, just do it one time and forget it completely. Actually, the license will be renewed automatically every 7 days by default (almost similar to Let’s Encrypt certificate). Although the KMS license is valid for 180 days only but there is no limit on the number of activation. In today’s post, I will show you how to activate Windows in your VPS or dedicated server for FREE using KMS client product keys. As you know, Windows Server is a specialized operating system which is designed for server only.