I bought a new Asus laptop today with Windows 7 Home Premium preinstalled, and my cousin (who supposedly happens to be a computer expert) formatted everything and set up Windows 7 Ultimate along with Ubunbtu.
I have downloaded the drivers and everything works fine, but Windows won't activate using the key at the back of the laptop. My cousin has also dumped an ISO image of the disk he used to install (Windows 7 Ultimate SP1, he told me) on my hard disk. Other than that, I have no Windows installation disks or anything.
How can I use my key to activate Windows? I don't need the Ultimate edition, Home Premium will be just fine.