Service Pack 3 was exclusively developed and released for the 32-bit (x86) architecture of Windows XP. "Ghost" Images:
Any file online claiming to be "Ghost Win XP SP3 64-bit" is either: A version created by a third party. Mislabeled 32-bit software. Download Ghost Win Xp Sp3 64bit
If you find a download labeled "SP3 64-bit," it is likely a community-modified version or an unofficial update pack. Why Use Windows XP Professional x64 Edition? Service Pack 3 was exclusively developed and released