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Fatal Error Solutions
     
 

Unable to load device driver

STOP: 0xC000026C

 
  Description  
     
 

A device driver or a system DLL failed Windows integrity check and has been corrupted or altered.

The path and filename of the damaged file is normally shown as part of the BSoD Stop message.

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.

Unable to load device driver

Filename device driver could not be loaded. Error Status was 0xnn.

Technical Information:

*** STOP: 0xC000026C

Beginning dump of physical memory
Physical memory dump complete.

Contact your system administrator or technical support group for further
assistance.

 
 
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
  Unable to load device driver 

Stop Code
  0xC000026C 

Type
  Fatal 

occurance meter
Windows
  2000

Vendor
  Microsoft Corporation
 
   
  Solutions and Fixes  
     
 
  Date votes Ratings
Check Memory
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You may have a defective memory. This is even more likely if it only occurs when the system is cold or hot, but not all the time. Use a memory tester to confirm if it is defective or if you have spare memory, try replacement.

Windows 7 and Vista include a Memory Test program when booting from the Windows Installation DVD. Step-by-step instructions with screen shots are available at Using System Restore on 7/Vista/2008 as part of System Recovery.

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

Additional Memory Solutions:

  • Confirm all the memory is of the same type and speed. Many motherboards only work correctly when the memory is installed with matched sets and matched speeds.
  • If you added or changed your memory just before this problem occurred, try reverting to the prior memory configuration to confirm it's the source of the problem.
  • Check that the memory is fully seated in the sockets. Memory sockets often have side latches that need to be upright to indicate the memory is correctly locked in place.
  • Confirm the memory resides in the correct slots on the motherboard. You'll need to refer to the motherboard manual to confirm this. There is little consistency, even within a single vendor. Some systems require that memory is installed as matched pairs, but not always adjacent to each other!
  • It's also possible the memory problem is on the video card, as they often contain additional memory. The video card should be tested and/or try a different video card to see if the problem goes away.
 
   
 
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  FaultWire Staff
Posted: 5-Oct-2008
 
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Fix Improper File Restore
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If you just restored from a backup, the backup may have failed to save key system files that were in use at the time of the backup. As a result, the restoration would restore some system files, but not others. This can cause different versions and/or a failure to repair some damaged system files.

This is a bit of a mess, and not easily solved. If you have a another complete backup, you might try it. You might also try using the Recovery Console to restore system files.
 
   
 
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  FaultWire Staff
Posted: 15-Sep-2008
 
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Fix Defective Hardware
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Confirm the hardware is working correctly using a hardware diagnostic program. If you suspect a specific hardware item, such as memory stick or video card, try replacing it with known good hardware.

Don't overlook the possibility that hardware was not installed correctly, especially anything you installed just prior to the problems starting. Make sure all cards and memory are securely seated in their slots. Verify disk drive cables are properly connected and are not loose.

Several software products that offer an extensive range of hardware 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
 
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Fix Damaged File
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Replace the damaged file indicated or reinstall Windows.
 
   
 
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  FaultWire Staff
Posted: 15-Sep-2008
 
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Restore From Backup or Image
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If you know the hardware is good and you have a current backup or image of the drive, you could reformat the hard drive and start over. This is often the last resort when all else fails, as you will often lose your latest settings and important data. If you have a spare drive, it may be worth it to install the drive in place of the first drive and do a fresh install of Windows. This will help confirm if this is a hardware or software issue (unless the original system drive is the source of the problem).
 
   
 
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  FaultWire Staff
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Also see our list of common Fatal Error Solutions.

 
 
 
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  Technical Details  
     
 
  technical details

A serious error in a driver or other system file occurred. The file header checksum does not match the expected checksum.

 
   
  Vendor Summary  
     
 
Vendor
  Microsoft Corporation (more info...)

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Phone
1-425-882-8080
1-800-642-7676

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Support
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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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