you can also get a copy of whatever windows version was installed and install a fresh copy of windows that way using the key from the sticker. it does not have to be the recovery disk used. you will have to install drivers and such yourself but windows update is pretty good now of getting most of them for you.
the added benefit is that all the bloatware that came on the laptop will not be put back and you'll have a plane vanilla windows installation for you to do with what you want
just a thought anyway.