The hard drive on your Dell computer tower is designed to store programs like the computer operating system, programs and personal settings. The hard drive on your Dell computer is attached by a bracket located on the front of the tower right behind the cover plate. It is held on to the bracket by screws, and is about 2 inches high and about 4 by 6 inches in size. You can replace the hard drive of your Dell computer tower yourself in under an hour. Writer Bio
