Disk Defragmenter Could Not Start

Asked By 210 points N/A Posted on -


When i try to disk defragment  i get this error message "Disk Defragmenter Could Not Start".

Anyone knows of a fix for this issue.

I have Windows XP

and also some times the attached error

Microsoft Management Console

Snap-in failed to initialize.



Thanks in advance


Best Answer by Sharath Reddy
Best Answer
Best Answer
Answered By 581875 points N/A #85481

Disk Defragmenter Could Not Start


I have seen this happening frequently when we install some 3rd party tools related to deframent and uninstall them.

Have you uninstalled any softwares like Ultra Defragmenter, Diskeeper,Defraggler,Mydefrag or Speedefrag or anything else. May be you removed them long ago and do not remember it now.

The solution is simple.

You need to re-register the defragmenters snap-in files and  basic registry entries.

  • First open up a Cmd by typing cmd in Run prompt in start menu  

  • Register the defrag components, by typing:
        regsvr32 dfrgsnap.dll
        regsvr32 dfrgui.dll

These 2 are the main dll's for it.

In Windows Explorer go to your windowsinf folder.
Check for a file called dfrg.inf right click this file and select Install

Hope this helps..

Answered By 210 points N/A #85484

Disk Defragmenter Could Not Start


Thanks a lot for your help with this…glad to see sites like this!! with REAL information.

Answered By 75 points N/A #85486

Disk Defragmenter Could Not Start


Your computer are affected to the viruses so that your disk defragment could not start 

Remove your virus or you can use your restore point in your system


Answered By 0 points N/A #85487

Disk Defragmenter Could Not Start



This error occurs if the module dmocx.dll is missing or not registered correctly. To fix this error type this command given in the start run box:
regsvr32 c:windowssystem32dmocx.dll
For more information visit this link : "Snap-in failed to initialize" : When trying to open De

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