K so heres the thing.. I recently bought a dell laptop. It came with DOS so i also bought an original Windows 7 Basic DVD.. I had the dealer install it on my laptop. after installation they gave me the dvd.

I also want to install the laptop on my home pc and another lenovo laptop I have.. keeping the "morally wrong" discussion out of this.. can I install the same dvd on both the machines and using the same key thats printed on the dvd?

will it work on all machines simultaneously? or should i experience any problems?