this little program worked great for me when I had a file that wouldnt delete.
http://www.majorgeeks.com/downloadget.php?id=4660&file=10&evp=6e05ba05a55cc1f26b41ebea520d92f4
http://www.majorgeeks.com/downloadget.php?id=4660&file=10&evp=6e05ba05a55cc1f26b41ebea520d92f4