Surprisingly, yes. While Microsoft has decommissioned many automated systems, enthusiasts still report success: Why is 000-0000000 a valid Windows XP key?
Leaked by the warez group "devils0wn" five weeks before Windows XP's official 2001 launch, the key spread through P2P networks like wildfire. It became so ubiquitous that some users still have it memorized today. The XP Professional x64 Edition Twist windows xp professional 64 bit product key
Windows XP Professional x64 Edition (released in 2005) has its own unique backstory that complicated licensing: Surprisingly, yes
A Windows XP Professional 64-bit product key consists of 25 characters, divided into five groups of five characters each. The format is as follows: windows xp professional 64 bit product key