My question is what are the drawbacks of running the 32-bit version of Windows XP on dual quad-core Xeon processors? Will the OS be able to utilize the 4-cores in both processor?

If you're running Windows XP, chances are it's 32-bit. However, if you're on Windows 10, Windows 8, Windows 7, or Windows Vista, the chance that you're running a 64-bit version goes up considerably.

Since Windows XP Pro 64-Bit was released, there has been a lot of speculation of whether it would help current gaming or anything else in general. I put both versions of the OS through a round of ...

This version of Windows XP 64-Bit Edition is the latest in Microsoft’s continuing efforts to deliver industry-leading innovation at an excellent price-to-performance ratio.

With the Windows XP launch on Oct. 25, Microsoft will complete the client half of its 64-bit computing equation.

“Anyone else remember Windows XP 64-Bit Edition for 64-Bit Extended Systems? Just rolls off the tongue,” he joked. Anyone else remember the 2007 Microsoft Office System?

VirtualBox is flexible enough to handle many types of 32-bit and 64-bit configurations. If you need to run a 32-bit version of XP in a 64-bit host, you can do that without any problems.

Analogous to the shift from 16 to 32-bit computing, the jump to 64-bit has been a slow one. Windows XP x64 never took off, though 64-bit versions of Vista did, thankfully.

If you're updating a 64-bit machine (substantially less likely, coming from Windows XP), grab the 64-bit tool. I just let these tools download to my Downloads folder and then executed them.