So, I'm trying to install a x64 VM in virtual pc and I get the error message "Attempting to load a 64-bit application, however this cpu is not compatible with 64-bit mode." My cpu and motherboard are vt-x compatible and I have intel virtualization technology enabled in bios. The funny thing is that if I try it in VMware workstation, the vm loads without any error, but with VB and windows virtual pc it does. I looked on Virtual Box's site and I read that it sup[ports x64-bit guest OS's. I'm pretty sure virtual PC does too. Do any of you know a work around on how to fix this? I would use VMware but I don't want to pay for it and I don't pirate software so that is out of the question. I have quite a bit of experience with computer science as I went to school for it and I work as a technician.