1, first check whether there is a floppy disk drive, but now most of the floppy drive has been eliminated, you can enter the BIOS, in the boot sequence to cancel a disk startup settings;
2, it is also possible that the BIOS settings will enable "Anti-Virus protection", access to BIOS settings, turn off "anti-virus protection";
3, if the problem is hard disk, general problems in the hard drive cable and hard drive bad road, if the problem of wiring, you can unplug the connection line, clear the dust above the dust and hard disk, and then plug back to see or directly replace the connection line;
4, Write boot area error: Restore the BIOS to the default, and then plug the optical drive data cable, or to change the optical drive data cable;
5, using the tool fdisk repartition (Note: Use this method, the data will be cleared);
6, or in the BIOS settings, the hard drive mode from "Standard mode" to "Enhanced IDE (normal)."