The right forum to ask Yesterday I installed W7 Home Basic 32Bit in a virtual machine and decided to sysprep it. Now Id like to upgrade it to Home Premium, Professional and Ultimate some how. I know I can use dism /upgrade option on a mounted version but that doesnt work for me upgrading to Professional from home premium. Only HB -> HP. (Actually i did this: HB -> HP -> Pro which didnt work) Using Dism or anytime upgrade how? Remember Id like to keep it sysprep /OOBE'd