Though floppy drives are being phased out, they are still present on many older systems, networks, and personal computers. From time to time one or more factors can come into play that will cause the error message: Floppy Disk Failure. In many instances the problem can be solved quickly.

A floppy drive reads floppy disks, typically 1.44 megabytes in capacity. Prior to memory sticks with their larger capacities and faster speeds, people used the humble floppy disk to transfer files and programs -- even to save the day in the case of a hard disk crash. So why do floppy drives fail?

When a computer is booted up a series of processes begin. The BIOS chip on the computer sends messages to installed hardware devices to make sure the devices are working properly. Floppy disk failure typically occurs at boot up if the system BIOS chip cannot initialize the floppy drive. This might happen for one of several reasons.

First, check the BIOS configuration to make sure the floppy drive is enabled. On most computers you can reach the BIOS setting by pressing the DELETE key during the boot process. If you have to makes changes to the BIOS settings, press the F10 key to save the changes and exit.

Assuming that doesn’t fix the floppy disk failure problem, you’ll want to check the connections to the drive itself. If the floppy drive was just installed there is a high likelihood that the cable that runs from the motherboard to the drive was either forgotten, not seated properly into its connector, or was installed backwards. In the latter case the LED light on the floppy drive will come on at boot and remain solid, indicating a floppy disk failure. Normally, the LED light will blink on briefly at boot, then turn off.

When installing a floppy disk drive, note that the accompanying parallel cable will have a red stripe along one side. Pin #1 on the floppy drive’s interface should be matched to the red side of the cable. Most drives today are made so that it is hard to insert the cable backwards, but this isn’t true in all cases, and if switched, you’ll get a floppy disk failure message at boot. If the parallel cable is properly inserted and seated, check for an attached power cable running to the computer’s power supply. An overlooked power cable will also result in floppy disk failure.

It is relatively rare that a new cable is bad, but if everything is correctly installed and you are still getting floppy disk failure, try swapping out the new parallel cable that came with the drive for an older one that you have successfully used. Troubleshooting is a process of elimination, so try a different power supply cable as well.

If you are still getting a floppy disk failure, the drive itself could be bad. You can try installing the drive into another computer, just to be sure. You do not have to screw the drive into the bay. Sitting the drive on some anti-static wrap atop a piece of cardboard is sufficient for testing purposes. If the drive works in the other computer, it’s time to go back and check your BIOS settings again. Your motherboard might also be bad.

If you experience floppy disk failure after installing other components in your computer, check the cables as noted above. It’s very easy to pull something loose without realizing it when working in tight quarters, or to unplug the floppy to gain access to another component, then forget to put the cable back.

If any objects become stuck in the drive, this can also result in floppy disk failure. Additionally, the plastic of a floppy drive might warp if exposed to high temperatures, such as when a laptop is left in a car to bake. Finally, like all mechanical devices, floppy drives do have a life span. As parts start to wear, the drive might return read/write errors more frequently. When the drive becomes bad enough, it will not initialize properly, resulting in floppy disk failure.