What is non system disk?

My computer wont start, an error message appears and says 'Non system disk'

Thank you

This question was answered on February 9, 2004. Much of the information contained herein may have changed since posting.

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Non-System Disk or Disk Error results when the BIOS cannot find the boot sector or the master boot record is missing or damaged; i.e the device does not have bootable media The BIOS searches drives in the order usually specified in the CMOS Setup This order is often, but not always, A: (floppy drive), C: (first partition on the hard disk) The error will occur during startup if the CMOS is set so the BIOS seeks the floppy drive first and a blank floppy was left in the floppy drive Other reasons you can get this error if there is no operating system installed or if you have a defective hard drive or floppy drive or if you have a virus.

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Posted by Student of Katharine Gibbs School - New York on February 9, 2004

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