well im running on a windows XP operating system and ive just watched about 3 1/2 movies witch are taking about 3 1/2 gb of my hard drive, my hard drive is pretty small because a friend of mine's dad let me use his hard drive, and i literally cant download anything without deleting these movies, can you please help me find out how to locate, and delete these movies, anything before reformatting because that would be just a pain.