i typed product key and it says "type a different product key" and "the product key you typed can not be used to activate windows on this computer."
what's the problem? i have a product key, but it's not working. i have a windows 7 upgrade kit. i upgraded windows7 from vista.
i wanna get an answer as soon as possible. it also says "3days until automatic activation". it's an office computer so i'll get in trouble if this has a problem.