I don't understand and I am not sure whether I am the lucky guy. A couple of days ago, I take the harddisk out of my old notebook (lenovo) to another desktop (lenovo). After boot up, it can boot up and work normally. After checking to the hardware specifications, it is all the new machine configurations. It has been working normally and can upgrade to the latest patch as well...what is going on? Why this can be happening? fyi, I upgrade the win7 home in old notebook to win10. After using it for a while, I take it out to another machine.