When you buy a Microsoft Windows 7 in the store, the only version you can install is the version you bought. Well there is a trick to show all the versions this way you can install any version you want from basic to ultimate.
To accomplish this you just have to delete the ei.cfg file in the folder /sources/ on the windows DVD
And burn the DVD again. If you have the iso on your computer you can use the eicfg_delete_utility from http://code.kliu.org/misc/winisoutils/ download here. Continue reading