If your computer is pre-installed with Windows 8, your product key should be on a sticker on your computer or with your documentation.
Ọ bụrụ na Windows 8 bịara preinstalled na kọmputa gị, igodo ngwaahịa gị kwesịrị ịnwe na mkpado na kọmputa gị ma ọ bụ na akwụkwọ gị.