Hi all,

I installed windows 8 release preview in virtual machine. Error displayed - pc needs to be repaired as pc does not have 64-bit processor installed - although it is a 64 bit machine with windows 7 64 bit as host OS. How do i fix it?

You likely need to enable hardware virtualization in the virtualization software you are using. You might also need to boot into your BIOS and enable hardware virtualization there too. You can refer to this installation tutorial.

Not all processors support virtualization either check to make sure your PC does.
Joe