Computer Starts Up With Option F1 or F2

Hello, everone, just found this site and really hoping i can get some help.
A while back i had to do a couple of things in my computer i have no idea what it was but... it left me with this : Every time i start my computer it prompts me with the choice of F1 or F2 if i click F1 it will start up. F2 takes me to the boot part. And now after asking that i have to put in a pssword. I went back in, and what i did should have fixed that part. But it didn't . Would love to know how to get my Vista starting back up in a normal way
Thanks!