Check if a CPU Supports Virtualization
Some software solutions, such as the new Windows XP Mode in Windows 7 Professional and Ultimate editions, require a CPU that supports hardware-assisted virtualization. You may see this technology referred to as AMD-V™, Intel® VT or VIA® VT.
You probably won’t find this attribute indicated anywhere in the traditional Windows settings. However, you can download and run the Microsoft® Hardware-Assisted Virtualization Detection Tool. It will quickly tell you whether or not your CPU supports virtualization. Just keep in mind that virtualization can still be disabled in the BIOS.