While I like your enthusiasm, running a masternode requires some technical knowledge and purely following a video might get you started, but if problems arise, you should have some basic knowledge around running and maintaining a server. While running a Geekcash (or any other crypto) masternode can be done on Windows, in today's world, that's often not the case. I bet 99% of Geekcash masternodes are being run on a Linux server. There are multiple reasons to why that is, including license costs, general stability, server related software being mostly developed for Linux environments etc. In the world of "this thing has to run 24/7 (like masternodes should), reliably, securely and similarly on every OS installation/configuration, Linux has the upper hand. I mean no offense but think of it this way: would you like it if your network was being run and maintained by a person who was only able to set it up by watching a YouTube video? I personally would want someone with experience doing that.

Windows 7 makes this even a little bit trickier since it doesn't support Linux subsystem, which Windows 10 supports. With Windows 10 and a Linux subsystem installed, you _should_ be able to run the same commands as described in the Sentinel Github page (Linux commands on a system that's actually a Windows system). Also the mainstream support for Windows 7 is over, so you're basically running a server on an OS that's no longer in mainstream support, making it (at least slightly) less secure, meaning you're open to attacks from online (note that your masternode IP address can be seen by anyone from the explorer).

I hope you can get the help that you need, but please stop the aggressive posts.