Everytime I start my computer I cant do alot of things, like going to the control panel, its not there, and I try to change settings and it says I dont have permission on this account??? I've never made any other user name...this just came up one day. What do I do? I cant change anything!!! How do I get back to admin status? And some error pops up when I start, about shell.exe.....I need help badly here!!!!