hello I have a copy of windows 8 AIO how to upgrade an exixting sistem or modify it so that it can be installed? I tried to edit the ei.cfg file but when I try to install it tells me to use one copy suitable for 64bit. My ei.cfg modified [EditionID] ProfessionalWMC [Channel] OEM [VL] 0 Sorry for my english but i'm italian
Hi, Thank you for the reply. Trying again it says to use the disc labeled 64-bit. I also used this iso for another computer and install of 64-bit went successful. But i would to upgrade this computer without re-installing the software.