some how i have 2 administrators on my computer there's me and then rac ? i'm wondering i paid off the puter thru rent a center could this be rac? and if so how can i (if needed)either combine the 2 ad's in to 1, or get rid of the other admin. if possible to do so without causing prob's...thanks for your help!

Open the control panel and click on Users. As you highlight the user you will have the option to delete it.