I was in the same situation. I ended up just buying a new drive and putting Linux on it. Was easier. If it's going to be a node only then I wouldn't worry about dual booting windows. Probably more of a security risk.
Discussion
It’s a general hobby machine and daily driver. With 2TB I can run a node in the background and it’s quiet so don’t mind leaving it on. I really don’t need a backup drive but my cup runnith over so I plugged it in. Probably will format it for security but currently isn’t even mounted