Installing on drive C i'd never do .... f.i. in case of making a image backup of your boot partition this will increase time and size of that, as the size at least doubles, probably more. I use a separate 2 TB internal SATA3 drive for BIAB Audiophile and all the files and stuff for BIAB i collected over the years. And even that drive is getting too small ... The USB drive from PG i would keep as backup for an eventual re-installation. Alas if you use a laptop i can see your problem though. -F