HTB issue with intro to Windows System

In the Introduction to Windows Systems module there is a challenge that is asking me to rdp and find the version number and Windows NT though I did connect remotely now that I am trying to use the commands I was shown to find the data Powershell continuously is telling me the commands are not commands at all. I have about 100 mins left before my instance is gone and I cannot figure out how the commands they are using in their ecample are working and then I try to put it in and Powershell is like ■■■■ no buddy this does not mean anything to me. Basically idk what I am doing but I need help because trying to find what the problem is but as a beginner I dont even know where to look so its frustrating.

Watched a youtube video of a lady going throught this module and she obviously has experience since she has a kali vm or something set up instead of using the instance spawn.If i am supposed to have my own vm set-ups and what not then why not just tell me