By default, you cannot innovate any version to higher ones. But, if you change some register settings, you are able to do it!
Open Regedit software. Find HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion
EditionID from “HomePremium” to “Enterprise” ProductName from “Windows 7 HomePremium” to “Enterprise”
That's all. Now reboot your computer and you can innovate.