Hi, I have a HP notebook with Windows 10 Home pre-activated on it. Now I tried to reinstall Windows 10 Pro OEM from an official DVD but when setup finishes it is still a Home version activated. I also did not get the 2 prompts for the new key. The Windows 10 Pro DVD is official with an unused Windows 10 Pro key.. How can I force the installation to the Pro version, of in other words how to disable the automatic activation of the Home version. I think a key in the BIOS is telling the install it must be a home version..... Or is the only option to get a legal version of Pro to buy the update online from MS directly even if I already have a legal unused key and DVD? Any tips welcome.