My old XP machine died after 9 years. Had to order online to get one that had Win7. It comes with Win8pro discs and I need to figure out how to make discs for the Win7pro in case the hard drive would ever crash. I made a system repair disc but to make image discs it say it could take up to 38 gig. The win8 is only 5 discs which is about what it took to make discs for the win7 laptop. Any ideas why it would want so many for an image?