Windows XP build 2600

Windows XP build 2600 is the official RTM build of Windows XP, which was released on 24 August 2001. PC manufacturers could sell PCs with XP pre-installed on 24 September 2001. The RTM build became generally available on 25 October 2001 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 Intel Itanium 64-bit processors.

The build was uploaded by warez group Devils0wn on 29 August 2001, approximately two months before the operating system was made generally available and five days after it was released to manufacturers. On 20 September 2001, an infamous photograph of an individual holding a Professional SKU disc copy of this build near Microsoft's headquarters was taken and later published online.

NFO file
NOTE: The NFO below is republished here for historical purposes only. NFO contents 

Bugs
A zero day activation bug may occur if installed on the current date. Attempting to activate will result in no installation ID being generated, making it impossible to activate under normal conditions, unless the system is updated to Service Pack 2.