I use Noteworthy Composer software, and it frequently creates a useless back-up file of a tune. These files have the extension BAK. They are useless because when I try to open one, my computer says "Windows cannot open this file."

I try to delete them by going to My Documents, highlighting them all, and clicking Delete. I say Yes to sending them to the Recycle bin. I empty the Recyle Bin and get the satisfying sound of paper crunching.

But when I return to My Documents, the BAKs are still there AND more copies of them have been made! I actually have files called "Copy of copy of copy of copy of ASHGROVE.BAK"

It's a sad thing that although NWC is producing these files, the term "BAK" can't even be found in Help or on their web site.

Any suggestions? This is like in the Sorcerer's Apprentice, where the kid whacks the broom and simply produces more brooms. Only in this case I get more files, not more brooms.