Windows Product Key on MacBook
So I want to download Windows 7 on my 2011 MacBook Pro, but do not really want to pay for a new product key. My mom has a laptop that has Windows 7 installed on it. I'm wondering if I were able to figure out her product key, if I could use it to download Windows 7 and use it for BootCamp. Or is it only compatible with the device it's registered to?
Thanks
P.S. - The reason I want Windows 7 is because my computer is not compatible with Windows 10, and I do not like Windows 8. And the fact my mom has Windows 7 would make it easier.
MacBook Pro, macOS Sierra (10.12.1)