Hello,
I have a 64 bit HP PC running the latest VISTA 64, I have Workstation 7.1.4 build-385536 installed and when I try to boot the windows 8 ISO image, it tells me that my setup does not support 64 bit, it tells me to check the bios and reboot the system, there is no setting in my bios for VT support or anything to do with 64 bit (HP / Compaq bios is very simple). I downloaded "VMware-guest64check-5.5.0-18463.exe" and ran this and it tells me my setup support 64 bit setup.
What can I check or look at?