windows user A/cs not visible

[rjagathe]

I can't log into winxp as administrator since only guest a/c is visible on bootup.

[HaroonR]

When u are at the login screen, press alt-ctrl-del twice, and then you should see the classic logon screen, Here type the username as Administrator and password(if any).
You should be successful to log in your Administrator account.

Now go to the Control Panel and click on User Accounts and do the necessary changes required to show your other accounts...., Try disabling the Guest account!!!