How to change windows xp to the classic login screen

First click Start->My Computer. On the side, under Other Places, Click Control Panel. Now click User Accounts. If you see something that looks like this:


Click user accounts. If you don't, Thats fine, your still in the same program. Under Pick a Task, Click Change the way users log on or off. Now last but not least, uncheck the box that says Use The Welcome Screen and click Apply Options.