If you lost or didn't create such you can, for almost all laptops order the replacement media.
Microsoft would not be where you get this media.
Bob
I have a laptop that came with windows 7, then I upraded to windows 8 but now I want windows 7 back. I then went to http://www.microsoft.com/en-us/software-recovery and entered the product key for windows 7 on the back of my laptop, but it said "The product key you entered appears to be for software that was pre-installed on a device. Please contact the device manufacturer for software recovery options."
Can someone tell me how I can get windows 7 back given the situation? I would really appreciate some replies.

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