Hi TheStad, Welcome to the Forums.
It’s important that you’re looking at the version of the docs for 4.27. (Also note the extra instructions for 4.27)
Once you can open up a windows command prompt and type ‘adb’, you are most of the way there.
In the past when banging my head against the keyboard to fix android issues I’ve had to change ‘Windows Environment Variables’ (Things need to point to the right folders/exes)
I feel it is appropriate to share this meme:
