The Windows 10 TH2 installation media incorporates 2 Editions Windows 10 Home and Windows 10 Pro. The Windows 10 Home UEFI BIOS embedded SLP key is automatically input during the installation and the Home Edition is hence selected. If its a Retail key you can change the key after installation. If its an OEM system builder license, strictly it should only be used on a machine that you have built and then the license should be sold with the machine... From here: [URL]#fbid=uxpqvOVhpRz Unofficially a generic product key can be input to change Edition from Home to Pro and then activation can be carried out with the OEM key. [URL] 
Dear All, Am in a Serious Trouble. I bought a new Laptop Dell INSPIRON 5559 with Windows 10 Home OS in it, i want to upgrade to Windows 10 Pro, So i bought i Win 10 pro CD OEM Pack and installed, after the installation ,the OS still showing Windows 10 Home.  I deleted all the partitions from the HDD and did a clean installation, still showing the same OS. So Guys! any suggestions or Solutions, am in a serious trouble. Please update. Thanks 
Not Able to Upgrade to Windows 10 Pro