Log On To Windows Dialog Box

[DOC]

How can I disable this logon box? This never appeared
before when booting up...now, during boot, I get a box
asking for User ID and Password?

 

[purplehaz]

Start, run, type in: control userpasswords2, hit enter.

Uncheck: users must enter a user name and password to use this computer.

Xp will then ask you to enter the user and password you want to auto-logon
to.
Or
Download and install tweakui for xp and use its auto-logon feature.

http://www.microsoft.com/windowsxp/pro/downloads/powertoys.asp