I have my old 10 install and my Mint install on different drives. I just unplug the one I don’t want and swap them physically to change.
It was a great point of friction when I switched to Linux because booting Windows meant actual physical action which acted as a deterrent.



I’ve got a family member interested in switching to Linux but the finance software is an obstacle. I had a look and landed on gnucash which I thought I would trial myself and then see if if would work for them. I like it!