Before hunting for a key, it is vital to understand that Windows XP Professional x64 Edition is the same as Windows XP Professional.
Purchased in a box at a store. These require online or phone activation. windows xp professional x64 edition product key
Product keys for the 32-bit version will not work on the 64-bit version. Before hunting for a key, it is vital
Since Microsoft no longer sells or supports Windows XP, you cannot buy a new key from official channels. Here is how enthusiasts legally source them today: Product keys for the 32-bit version will not
It uses the NT 5.2 kernel (Server 2003) rather than the NT 5.1 kernel (Standard XP).
This version requires 64-bit drivers, which were notoriously difficult to find during its peak but are now archived across the web. Types of Product Keys
If you have a key but it isn't working, check the following: