Yes... this happens cause you are ONLY able to log in with one account per X-Box. (Neither Guests Allowed)
Chat with our AI personalities
You can restart it then try to sign in again.
You don't all you have to do is get a xbox 360 a (white) one the take your original xbox games and play them on your xbox 360 be sure 2 get a xbox 360 elite or it probably wont work.
If you are asking if you can sign in two profiles onto one xbox, then yes you can. Just go to "Recover Gamertag" in the dashboard, and your friend can sign in.
to make more interest so it wont be boring
Yes but he wont tell anyone his name