How to Log On to Windows XP
You begin the Windows XP log on process by simply turning on your computer. Having to actually log on to Windows XP depends on whether you've created a user account or utilized the password protection feature. But don't worry: Even if you don't know if you have a user account or password protection, following these simple steps to log on to Windows XP points out in a very obvious way if you have a user account, password protection, or none of the above.
Turn on your computer.
Turning on your computer begins the start-up sequence. Note that if you haven’t set up the password protection feature or if you haven't set up more than one user, you’re taken directly to the Windows desktop after you turn on your computer, which means you won't perform the next step.
Enter your password and click the arrow button.
Windows verifies your password and displays the Windows desktop.