How to fix diskette drive 0 seek failure
When starting your computer, if you experience the diskette drive 0 seek failure error, it's due to an issue with the computer booting from a floppy disk drive or bootable device. However, this doesn't necessarily mean there is an issue with the floppy drive itself.
Remove disks, discs, and drives
Make sure the computer is not booting a non-bootable device by remove any floppy and CD (compact disc) in the computer. Also, disconnect any external drives any other USB (universal serial bus) device (except the keyboard and mouse). If this resolves your problem, your computer was trying to boot from a non-bootable device.
Fix boot options
If there were no disks or drives connected the computer, make sure the boot sequence is properly set in the computer's CMOS (BIOS) setup.
Once in CMOS setup, navigate through the setup and find the section that lets you set the boot devices that the computer checks when starting up. The floppy drive is likely one of them (probably the first on the list). Remove the floppy drive from the boot up list or change the order, so the floppy drive is last. Instead of having the floppy drive as the first boot drive set your hard drive and CD or DVD (digital versatile disc) drive as the first two boot devices.
Once you have made those changes, save, and exit the setup (usually by pressing the F10 key).
The diskette drive 0 seek failure error message should no longer be seen when your computer starts up.
Bad hard drive
If you've tried the above recommendations, but problem persists, there may be a problem with the hard disk drive that's preventing it from booting. Unfortunately, this is often an indication that the hard drive has failed and needs to be replaced.