''ghost' user account i can't delete!

I have an acer aspire one 11 inch netbook which had been a display model. When I started it up it had a user account called KIOSK, which I deleted (had to phone the store for the password), and created my own account as administrator.
But the KIOSK account still shows up. The workaround is I have to click on switch user, then log on into my own account. but obviously I'd like to get rid of the KIOSK account!
When I search my computer KIOSK shows up as a file folder. I've tried deleting it but the system tells me I do not have the authority to do so.
Any ideas? I've tried shredding this file with my McAfee shredder, but it won't let me do that either.
I don't want to reset my netbook to factory settings as I already have everythign set up, and all my files transferred from my previous laptop.
HELP!!!

 

Hi,
are you happy to use the registry?? if not I wont bother you any further.
or on bootup alt F10 the do a recovery this should solve the prob.

 

Thank you.

 

You can possibly try these instructions:

http://www.bleepingcomputer.com/forums/t/484451/windows-7-how-to-delete-the-kiosk-user/

But from what I have read elsewhere, that is often used on store display models. Where did you buy the computer from? Was it a floor model or perhaps did you buy it used off of someone else? I think Kiosk mode is something made by Microsoft for certain installations of Windows from what I've read so far...