I have been operating on a macbook air 17 inch and the parallels VM takes up way too much space. There are other options out there which take up far less such as a Linux OS. I learned from my mistake though. I will be cancelling my subscription but I want to thank the parallels team for replying to my support tickets whenever I opened them. Its a great service just took up too much space. I tried moving it to a external card my VM but lost 30k in crypto.