You'll still need a valid product key to install it, which is really what you're paying for when you pay for a version of Windows.
Ị ka ga-achọ kaadị ngwaahịa dị irè iji wụnye ya, nke bụ n'ezie ihe ị na-akwụ ụgwọ maka mgbe ị kwụrụ ụgwọ maka Windows.