For both RP and RTM, unlike CP, Windows 8 *doesn't* support all systems even though the minimum stated base hardware requirements are exceeded. On a Dell DXP061 series with: an Intel® Core™ 2 Duo processor, 4Gbs of memory and an ATI graphics card, no matter what configuration options, BIOS or peripheral changes, Windows 8 RP and RTM is a dog that just don't hunt. Windows 7 runs without any problems on the setup. Both Dell and MS confirmed that MOST systems will run Windows 8 and any more than five years-old, even if it exceeds minimums, may NOT work. Anyone else having similar problems?