"Windows failed to start. A recent hardware or software change might be the cause... File: \windows\system32\boot\winload.exe Status: 0xc000035a Info: Attempting to load a 64-bit application, however this CPU is not compatible with 64-bit mode." This system is an HP rx4610 Itanium-2 server quad CPU with 21GB of memory it's not some toy 32-bit system. I plan to testWin 2008on A HP rx2620 when I can get some time to take it down.