How to Log Off or Switch Users in Windows XP
If someone else is going to use your computer, you don’t have to shut down Windows XP. You just need to log out of your user account or use the switch user option so that another user can access his account. Follow these steps to log off the current user account or to use the switch user option of Windows XP.
You’ll be presented with two options: Log Off or Switch User.
Choose either Log Off or Switch User.
Windows will save your work and your settings and will return you to the Welcome screen.