I wanted to take advantage of the Microsoft offer to upgrade my system and just bought the Win 8 Pro upgrade. My system features an AMD Phenom II X4, which should be recent enough to satisfy all the requirements.
I was running Win XP 32 bit, therefore the upgrade assistant changed my system to Win 8 32 bit. However, I wanted to have access to all 4GB RAM, so I tried a clean installation by creating the .iso and a DVD. The Win 8 program that create the .iso preserves the bits of the version on which it is hosted, so on my system I created a 32 bit DVD. Then I used another computer to create a 64 bit DVD.
Trying a clean installation with the 32 bit version, everything runs smoothly. However, the 64 bit installation hangs immediately and remains forever on the first splash blue window.
Two things always, burn the dvd Iso image to the Dvd-r disc at a slow speed.
Doing it too fast will cause errors on the dvd. Plus if you have 4Gb of memory install a x64 version, because you will never get full use of the memory with a 32 bit version.
It can only access 3.25 Gb of memory, and also at any time if you upgrade the memory size you will have to upgrade to an x64 version of the os. So you are better installing the x64 version in the first place ok. Re burn the x64 version at a lower write speed. it should work ok then.
I don't think that's the problem, otherwise ImgBurn would have detected something during the verify phase. By the way it was a DVD-RW. I burned on a DVD-R a 64bit evaluation version of Windows 8 (the one with 90-day expiry) and it has the same issue. Same speed DVD-R burning of the 32bit version and no problem. All the hints are towards an incompatibility of Win 8 64bit version with the AMD K10.
Have you had a glance at the link? There appear to be someone with my same problem.
My motherboard is an MSI MS-7599. I think it was already a fairly recent BIOS version, anyway I just ran MSI Live Update so that it is now the latest. The behavior of the Win 8 64bit installation DVD is the same, it hangs at the first flash blue window.
The 32bit version, instead, proceeds regularly, as I said.
EDIT: Nope! I was too impatient. It didn't hang this time, it takes longer than I expected, but eventually it continues
I expect it to vary broadly depending on the underlying system. Now I am unsure whether it eventually would continue even before I upgraded the BIOS, but I am pretty confident that the upgrade at least made the wait shorter. I will measure it next time I reboot, but it could be in the order of 10 mins.