Boot Camp Failed

I installed bootcamp and just about finished when it stopped and said, you have a corrupted file. I finally managed to get back to osx, but when I go finder, there it sits called "untitled". How can i get rid of this and get my space back.
I'm was a window user for many years, now a recent Mac user, so I would appreciate any answers I get in words an old guy can understand.
Thanks.

Run the boot camp assistant again and select "Delete bootcamp partition"

boot camp failed

I'm kinda new--where do I get botycamp assistant. bot camp is no longer in my application. Will continue to look.Thanks

Its in Applications > Utilities. You could just as well have typed in "boot c.." in Spotlight and it will pop up immediately

Thanks goobimama