Unfortunatly pc makers these days make savings by not supplying restore disks and instead create a restore partition on the hard drive.
They will prompt you to make a set of recovery disks, however many choose to ignore this at their peril and then have to purchase them from the maker.
A couple of months ago a friend purchased a new Acer desktop, which kept prompting him to create a set of recovery disks, untill I went and made them for him, otherwise it still wouldn't have been done. That's fairly typical of a lot of users.
I can't see why they don't offer to supply them at time of purchase for a modest fee, I think most would pay the extra if the salesperson explained the benefits, but that's another story, you have to find one that cares.