ive read that laptops preinstalled with windows cannot be reformatted using a genuine windows cd because it is OEM. If i try to use my laptop product key on a genuine win 7 cd it wont work. any truth to that?
As far as I know, all windows dvd's are exactly the same being either 32 bit or 64 bit.
What gets installed/activated is determined by the product key on the bottom of your laptop.
Since windows ie 32/64 bit agnostic, you can even make that change.
You can borrow a dvd, or dowhload a copy. Just make certain that it is from a legitimate source.