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[ The PC Guide | Troubleshooting and Repair Guide | The Troubleshooting Expert | Troubleshooting Specific Components | Troubleshooting Hard Disk Drives | Dynamic Drive Overlay Problems ]

I am having problems or getting errors with my dynamic disk overlay program

Explanation: There is a problem with the dynamic disk overlay software being used to allow access to the full contents of a larger hard disk on an older PC.

Diagnosis: Dynamic disk overlays are really kludges, pieces of software that are trying to act as mediator between a disk drive and a BIOS that can't properly support it. They work fine in most cases but there can be many different reasons why they have problems under various circumstances.


  • Troubleshoot the problem, as it is manifesting itself, by looking for the symptoms elsewhere in this section on troubleshooting hard disks. You may find the answer there.
  • If you are using one of the specially-customized pieces of software created for one of the popular hard disk manufacturers, contact the manufacturer for technical support.
  • The most commonly-used DDO is Ontrack's Disk Manager. Consult the Ontrack web site, which contains a great deal of troubleshooting material.

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