I use a laptop with WIN XP Home SP3.  I am the only user.  I turned off fast user switching 2 years ago since I was the only user, however, today I thought to better secure my system I would create another account and make it the admin account.  I then made my account the limited user account.  BIG MISTAKE.  Since I turned off fast user switching I can not switch users from my limited user account to my admin account.  Now I can't sign on to the admin account to make changes to the computer.  How do I turn fast user switching back on from a limited account (I know it says you can't do it but is there anyway I can do it?)  I NEED to do this so I can switch to my new admin account to make changes.  PLEASE SOMEONE HELP.   Have you restarted the computer yet?Yes I have.  But with fast user switching off, when I press start and select log off of course I won't have the option to switch users since I turned it off 2 years ago so it just logs me off to my limited account sign on.  I know I should have turned FUS back on before I did this but I had forgotten I had turned it off, duh.  Have you completely turned the computer off and then turned it back on?Yes, I have completely shut it down and then powered back on.  Does anyone know how to turn "fast user switching back on with a limited account"?  Thanks Try starting back up and pressing the F8 key repeatedly as the computer boots. This will take you the advanced start up menu. CHOOSE Safe Mode. Now you should be able to access the admin account.Thanks JJ3000.  I finally got my fast user switching (FUS) started again.  I went to control panel, admin services, then services.  I then went to the FUS service, then advanced, then to accounts which are available to use the service.  Then I was able to sign into my admin account from there.  I appreciate your help.  Its FOLKS like you that make these forums viable.  Peace my Brother.