Sticky please.
It seems that Microsoft has opened up x64 upgrades on their latest operating system, Windows XP 64-bit.
https://microsoft.productorder.com/clientx64/default.aspx
It seems that Microsoft has opened up x64 upgrades on their latest operating system, Windows XP 64-bit.
Technology Advancement Program Eligibility
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.
https://microsoft.productorder.com/clientx64/default.aspx