I don't use parallels all that much and with HD space shrinking, I was hoping to find a way to reduce the file size of the virtual disk. I currently have Windows 7 installed on Parallels 5. The disk size is 25GB, I'd like it down to about 15. I've tried compacting but that hasn't done much. Do I need to delete the virtual disk and reinstall windows? Honestly, it wouldn't be a problem, I don't have anything critical installed, but if I could avoid the hassle, that would be great.