My alienware recently updated to 8.1, and when I restarted it, it made me enter my information just like it did when I first bought it. But after I logged in, nothing showed on my desktop, I now realize that it made a separate account with my same name, but did not give me admin permissions, and for some reason I cannot change users and anytime I try to change it, nothing will happen, It also keeps telling me: No mapping between account names and security IDs was done.
Can someone please help?