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Fatal Error Solutions


STOP: 0x00000043


There was a problem finding a partition on a hard drive.

Typically each partition on a hard disk represents a drive (i.e. C:, D:, etc.).

This is a fatal Windows error, typically called a Stop message, Bug Check, or more commonly the Blue Screen of Death (BSoD). The system is in a forced reboot state. Any unsaved work is likely lost.

  Sample Screen  

A problem has been detected and Windows has been shut down to prevent damage to your computer.


If this is the first time you've seen this Stop error screen, restart your computer. If this screen appears again, follow these steps:

Check to make sure any new hardware or software is properly installed. If this is a new installation, ask your hardware or software manufacturer for any Windows updates you might need.

If problems continue, disable or remove any newly installed hardware or software. Disable BIOS memory options such as caching or shadowing. If you need to use Safe Mode to remove or disable components, restart your computer, press F8 to select Advanced Startup Options, and then select Safe Mode.

Technical Information:

*** STOP: 0x00000043

Beginning dump of physical memory
Physical memory dump complete.

Contact your system administrator or technical support group for further

Text may appear differently depending on where the error occurs.
Additional technical information (hex values) specific to a machine are not shown.
  Key Facts  
Full Title

Stop Code


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  2000, XP, Vista, 2008, 7, 8

  Microsoft Corporation
  Solutions and Fixes  
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Partition Table Corrections
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You may have a virus or malware that has corrupted the partition table. This table at the start of the first hard drive tells the BIOS (and the OS) how to boot up. Most Anti-virus products cannot fix this error once it occurs.

One product we know of, Partition Commander, has the ability to rebuild a damaged partition table and may be able to fix the issue.

Once working, be sure to do an extensive scan for viruses and malware.

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  FaultWire Staff
Posted: 5-Oct-2008
Check Hard Disk and Cables
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If you had changed, added or removed hard drives, or changed or removed drive cabling, likely something is wrong. Recheck that the drives are properly installed and the cabling has not changed. Switching cables to different motherboard connectors or changing the master/slave drive jumpers (on old ATA drives) can cause this problem. In some systems, the cables were not plugged into the drive or motherboard securely and may have worked loose. Reseat all drive connectors.

It's also possible a hard drive is failing. Use a system diagnostic to validate the drive or swap to another hard disk.

Several software products that offer disk diagnostics includes Fix-It Utilities Professional and SystemSuite Professional. Other diagnostic products include Eurosoft's PC Check and Iolo's System Mechanic.

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  FaultWire Staff
Posted: 5-Oct-2008

Also see our list of common Fatal Error Solutions.

  Forum Help  
Forums on topic

Check out what others say about this issue and review or add your own comments and solutions!

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  Technical Details  
  technical details

A disk device driver called the I/O system to change a partition type on a specified partition, but the partition does not exist.

  Vendor Summary  
  Microsoft Corporation (more info...)

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    While BSoD fatal stop errors are identified by Microsoft Windows, they are often caused by non-Microsoft applications, drivers and hardware issues.  
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