Iwant to know how get the product key of window vista

if you buy your vista on retail store
Normally this product key is on a sticker on your computer or located with the Windows Vista product manual.
or
You can find your product key on your computer or on the installation disc holder inside the Windows package. The product key sticker looks like this:



if you lost your product key you need to buy new one

Hope it Solve you problem^_^