Switching btw user accounts quickly in Windows

You're in the midst of writing an important document or composing a lengthy spreadsheet when someone sharing the computer asks to use it for an emergency. Sound familiar? Windows XP allows you to take those situations in stride. With the Fast User Switching feature in Windows XP, you can easily interrupt your work without closing your files. All you need to do is:

1. Click Start, and then click Log off.

2. Click Switch User.

Alternatively you can Switch User by pressing "Windows Logo Key + L"

Doing so displays the Welcome screen where another account holder can log on. When finished, that person can log off the same way, and you can simply log back on to find your open files just as you left them. What's more, if the other user accidentally shuts down the computer instead of returning to the Welcome screen, Windows XP automatically saves all open files and any application programs that are running, so that they are restored when the computer is restarted.