Keyboard settings help... PLEASE HELP ME?

For some reason i dont know i must of accsidently changed a setting or something, when i click any key on my keyboard i either get some sort of shortcut or a "ding' sound for an error or some ****... i dno wtf is goin on but its fkin pissing me off.. is there some way to restore default settings on a keyboard or something that i can do to fix this?