LOG in Problems

MY college went out of business and they gave some of the employees computers and other office accessories before auctioning them off.

When i try to log on, it says that the domain is not available. Then it says something about log on to various domains thats doesnt apply to me and also gives me a problems logging on………i cant delete none of the log on domains……….its aggravating…..
how can i override the all of that log in stuff and just make sure that i dont have to do it anymore……..i just wanna go to te internet….

CAN ANY 1 HELP ME PLZ