As we’ve detailed before, XP Mode will run the older operating system in a virtual environment inside Windows 7 for maximum compatibility with older applications. In fact, Microsoft is claiming that XP Mode provides near perfect Windows XP compatibility within Windows 7 – so that takes care of one of the raison d'etre for the old OS.
A minimum of 2 GB RAM is needed for XP Mode. And as we detailed last week, XP Mode will utilize and require virtualization technologies in recent processors such as Intel VT and AMD-V. Often hardware virtualization will need to be enabled in the system BIOS too.
Now the confusion comes in for many owners of recent Intel CPUs. Even if you have a Core 2 Duo or Quad CPU, that doesn’t mean that you have what it takes to run XP Mode in Windows 7.
For one reason or another, Intel has confusingly differentiated its processor line by including and excluding VT, even in CPUs of the same generation and family. To make matters worse, there isn’t an easy way to tell if your CPU is capable of virtualization other than digging through the documentation.
Thankfully, Ed Bott in his ZDNet blog has done the dirty work for us and compiled a list of all current Intel processors and have marked them with either a “Yes” or “No” for the presence of Intel VT.
|Core 2 Duo||Header Cell - Column 1|
|Core 2 Extreme||Row 6 - Cell 1|
|Core 2 Quad||Row 10 - Cell 1|
|Core i7/Core i7 Extreme||Row 15 - Cell 1|
|Pentium D/Pentium EE||Row 18 - Cell 1|
|Pentium for Desktop||Row 23 - Cell 1|
Mobile CPU products
|Core 2 Duo Mobile||Header Cell - Column 1|
|Core 2 Extreme Mobile||Row 16 - Cell 1|
|Core 2 Quad Mobile||Row 20 - Cell 1|
|Core 2 Solo||Row 23 - Cell 1|
|Core Duo||Row 26 - Cell 1|
|Core Solo||Row 32 - Cell 1|