Sometimes it happens that after Windows XP installation your are
automatically being logged in with the inbuilt Administrator account, which
is not always the case. According to my experience, it happens when Windows
didn't recognize your Display Drivers and skip the step of "Welcome to
Windows XP" installation. Here it asks you about: Do you want to turn of
Automatic Updates, your Internet Connection settings and New Users you want
to create.
Now, if you will try to create a new user then the default priviledges will
be Adminisrtator not limited and once you create another administrator
account the built in Administrator account will hide from the Welcome screen.
This is for security, safety and troubleshooting reasons that windows do not
let you use the inbuilt Administrator account.
So, I will advise you to first copy all of your data from My Documents,
Desktop, Internet Favorites and other stuff to a folder on C or another
drive. Create a new account (you have no choice but to set it as
administrator). Once you created a new administrator account then create a
new account and you will be amazed that Limited option will be working.
If you do want to display the inbuilt Adminisrator account on Welcome Screen
then here is the utility which can help you:
http://www.dougknox.com/xp/utils/xp_admin_ok.htm
I will advise you to first run this utility so if you create a new
administrator account then the default will still remain on Welcome screen.
Later, you can turn it off using the same one.
If you do not wish to create another administrator account then follow this:
(However, I have not tried it yet but you can let me know if it works).
1. Run the above utitlity and make a check mark on "Enable Admin Account on
Welcome Screen."
2. Once Log Off and Log In again.
3. Now, try to create a new user account and see if the Limited option is
available.
If not, then you have no choice but to create an another admin account.
Hope this help, let us know!