rafiko169 :
I didn't extract the license from bios i bought it !
so you telling that an oem licence CAN NOT be activated on a downloaded windows 8.1 pro iso ?
I am entirely confused as to what you have and don't have, and where you want to end up.
Your current install is what?
Windows 7 pro 64bit
And you bought what, from where?
Windows 8.1 pro OEM licence key/Store
What do you want the end state to be?