Are you using your web browser to look at node red once launched?
If not, then open a browser and type 'localhost:1880' that should open up node red for you.
Your cmd window should not be waiting for another command, it should just be sitting there and when you access node-red on your browser, the cmd window will display actions that it is performing.
Keep the cmd window open until you finish with node red, then use 'CTRL - C' to exit.
Are you using just normal CMD window or using Shell in Admin mode?
Not sure if it makes a difference but I 'right-click' on windows (bottom left icon) and select Windows shell admin mode, then run node-red from within that. Same as above though, you access node red from within a browser.
You seem to have run the right commands in the right order (apart from installing v10 of node.js -the instructions say to install v8 but I don't think that is actually causing the issue here)
I ended up uninstalling node.js and manually deleting all associated folders such as ".node-red." After reinstalling node.js and node-red everything seems to be working. Thank you for the suggestions!
If it just hangs it could be a network issue if you are behind a corporate proxy. This issue has come up multiple times, but I can't find the related forum topics just now. It had something to do with NPM checking package versions, I think.
If that's the case, it should resume after 2-3 minutes.