product key

i can't used my product key when i want to activated my windows,when i
activated my windows with the same key.it is always say"the product key you
type is already in used".i never used this product key in other computer.if i
use this product key in other computer,can you help me to find out where the
computer used the same product key is?

"ping_boyz" wrote:

> i can't used my product key when i want to activated my windows,when i
> activated my windows with the same key.it is always say"the product key you
> type is already in used".i never used this product key in other computer.if i
> use this product key in other computer,can you help me to find out where the
> computer used the same product key is?
>