How does the windows allocationba size work on parallels?

I had a bootcamp partition but deleted it.. How do I know how much space I need for windows 10 and some programs?
I basically need space for QB pro, a Slide show program and a printing program. The slide show needs about 20 gigs to run for scratch disc, etc.

So I dont see where you set the size of the PVM?

 

Hi @crogers , you can set up the hdd size during the VM creation process. Check this out for more info and let us know if it's not that case.
Also I've found the QB system requirements for you, you can review this link and change the VM size to your needs.