What does the “Non-system disk or disk error” message mean?
Short Answer: Most likely you have a non-bootable floppy in the A: Drive that you forgot to take out during boot-up. Remove the disk and press any key. Or, your hard drive may not be bootable or is not configured properly in the BIOS, or you may need to replace the hard drive. Details: If the problem is not resolved by removing a floppy disk from the A: Drive, then you should give us a call.