Thanks @instagramfamousfam for helping
Hey @Gernozarus it looks like you either provided TurnKey Internet with the Windows Server 180 day Trial, or you may be renting Windows Server from turnkey for $20/month. For that reason, Windows Server is already installed (I can see that by looking at your screen shots).
If you did not send TurnKey a support ticket containing the link to download your Windows Server 180 day trial, then you are paying $20/month extra. In this case please send me a Private Message and I will send you all the instructions on how to save the $20/month.
Your server is up and running. Just close the Server Manager window, and it will look and feel just like a typical operating system like Windows 10. All you need to do now is Install MassPlanner and you are up and running.
Click Here to learn in more detailed instructions
Yes, and no.
Yes, different operating systems will use more or less memory (Hard drive space, RAM, CPU). Windows Server uses more memory compared to Windows 7, 8, or 10. That is perfectly normal.