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Fatal Error Solutions


STOP: 0x00000073


Windows has a registry problem, but the registry is not corrupt.

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: 0x00000073

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  
  Date Votes ratings
Fix corrupted disk
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The disk drive may have some corrupted sectors. It is best to run this repair outside of Windows as follows.

For Windows XP, boot from the Installation CD. The the first option, press R to go into the Recovery Console.

At the Prompt, enter:

    chkdsk c: /r

This operation may take some time (hours), so be patient.

The /r option will look for defective sectors and clean up any found bad sectors. It also attempts to read and save any data from defective sectors. This option requires the disk be locked, which cannot occur if Windows itself is running from the drive.

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Posted: 22-Oct-2010
Solutions Created: 1
Free Up Disk Space
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The system disk (typically C:) may be full. We recommend at least 1 GB of free disk space be left on the Windows system drive at all times. To get additional space:

  • Remove deleted files (right-click on the trash-bin and select Empty recycle bin)
  • Remove unneeded files, such as browser cached files.
  • Move files to another drive or media
  • Compress or Zip large files to take up less space
  • Transfer the system to a new larger drive

Several software products that can help clean and remove unneeded files are Fix-It Utilities Professional and SystemSuite Professional. If you need to move or copy a partition or entire drive, you could use Partition Commander or similar product.

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  FaultWire Staff
Posted: 5-Oct-2008
Add More Memory
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The operating system or application may have run out of usable memory.

Adding additional memory may solve this problem. This is especially true if your system is configured for a minimal amount of memory for Windows.

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  FaultWire Staff
Posted: 5-Oct-2008

Also see our list of common Fatal Error Solutions.

  Forum Help  
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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

One of the top-level registry keys, also known as core system hives, cannot be linked in the registry tree.

After the Stop code will be 4 hex values: {Parameter 1, Parameter 2, Parameter 3, Parameter 4}.

Parameter 1 is set to 1.

Parameter 2 specifies the status code that led the Windows operating system to assume that it failed to load the hive.

A value 0xC000017D indicates there is insufficient disk space.
A value 0xC000009A indicates an attempt to allocate pool has failed.

Parameter 3 specifies the index of the hive in the hive list.

Parameter 4 specifies a pointer to a UNICODE_STRING structure that contains the file name of the hive.

  Vendor Summary  
  Microsoft Corporation (more info...)

Microsoft Corporation Logo



    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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