The assignment instructions say
... there are three questions for you to answer using your Pi and Node-red
Surely they are expecting you to use the Node-red which you have already installed on a Raspberry Pi, so why struggle to install it on Windows?
One very satisfactory way to use Node-red is to run it on a Pi but to access it with your favourite browser on a PC. All you need is for the devices to be connected to the same network and for you to know the Pi's IP address.