Microsoft Windows XP, 5.1.2257.1

This build marked the change for the Whistler bootscreen (still heavily based on the Windows 2000 one).
During the final stage of Setup it now display's the ''information'' screens.

Since this is a personal build, the Administrator account doesn't work, which option you choose, you are automatically logged in as your used User Name during Setup.
You also notice that this build has the newer theme active by default, including the new Start Menu, the Start Button and Option buttons in the dialog boxes have been smoothed and on the Desktop the My Documents, Computer, Network Places and Internet Explorer are removed by default.
The My Documents is now named My Files.