Windows XP build 2600

Windows XP build 2600 is the official RTM build of Windows XP, released on 2001-08-24. PC manufacturers could sell PCs with XP pre-installed on 2001-09-24. The RTM build became generally available on 2001-10-25 with two main versions: Home Edition and Professional. It had kernel version 5.1 (2000 was version 5.0 and Neptune was 5.50). There is also a version of this build for Itanium 64-bit processors.