There is confusion over the installation of Microsoft Windows XP Professional x64 Edition (XP x64). What drivers do you need to use? What drivers are built in? Many people are also curious about the differences between Microsoft Windows XP, 32 bit and XP x64. When I went down to my local medium sized computer wholesaler and picked up a copy of XP x64 the sales rep told me ? you know there is no support for that and none of your games or programs will work on it, right? This article will expel the myths and provides the truths about installing and using XP x64.

You cannot transfer files and settings from a computer that is running a 32-bit edition of Windows XP to a computer that is running Windows XP Professional x64 Edition
Update for Windows XP (KB896344)
Date last published: 6/28/2005
Download size: 1.3 MB
The Files and Settings Transfer Wizard included in Windows XP SP2 does not support gathering data from a 32-bit Windows XP environment and applying it in a 64-bit Windows XP environment. Install this update to enable support for collecting data in a 32-bit Windows XP environment and applying it to a 64-bit Windows XP environment. After you install this item, you may have to restart your computer.
System Requirements
Recommended CPU: Not specified.
Recommended memory: Not specified.
Recommended hard disk space: Not specified.
How to Uninstall
This software update can be removed via Add or Remove Programs in Control Panel.
Get help and support
http://support.microsoft.com
More information

http://support.microsoft.com/kb/896344

In order to be eligible to receive Windows XP Professional x64 Edition, your computer must have been ordered or built between March 31, 2003 and July 31, 2005 and must contian an x64 processor. You must also have a Retail (Full Packaged Product), System Builder, or OEM version of Microsoft Windows® XP Pro (32-bit) to exchange.

You can now grab a new full OEM version of the OS here for as low as $139.

Released on April 30th, Windows XP Professional x64 Edition is an updated version of Microsoft's workstation operating system designed to support 64-bit processors and applications. This new edition of XP works with both AMD64 and Intel's EM64T, x64 processors that are compatible with standard, 32-bit x86 CPUs and binary compatible, as architectures, with each other, allowing Microsoft to release a single version of its x64 OS. In this article, SimHQ will compare the relative performance of the games in our benchmark suite on both versions of Windows XP. But first, let's take a quick look at the reasons why Microsoft suggests upgrading to the x64 edition.

Windows XP Professional x64 Edition is an operating system with a lot of opportunities. Currently, there aren?t a lot of users that really need this release, but in the future memory capacities will have reached such high levels that it will be necessary. Programmers, web designers, 3D animators to gamers, all will need this.