New
#11
We can't upgrade by booting from the ISO file. We'll need to extract it in Windows 7 and in Windows 8, we'll need to mount it and then we can upgrade through setup.exe and I think, it let us choose which version we wanted to install.
Some people are saying that we can upgrade through the MSDN ISO while the customer support of Microsoft told me that I should expect that it may ask me product code anytime. By the way, I'll go with Media Creation Tool's ISO, if it support resume.