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Discussion Starter · #1 ·
G'day all,

My computer with XP Pro when idle for 15 minutes (exactly) the hard drive will start up chattering by itself.

I open "Task Manager" and find that dfrgfat.exe is running.

No 3rd party defrag programs installed, only the Windows XP Pro default defrag.

I run defrag "analyze" and it states hard drive not needed to run defrag.

Once Task manager opens, the dfrgfat.exe stops running till computer is idle 15 minutes again.

There is nothing in Scheduled Tasks.

Any help be much appreciated, this is driving me nuts. :sigh:

Regards,
John
 

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Discussion Starter · #3 ·
Re: Defrag starting by itself after a time period

I had previously checked Google and noted Diskeeper was mentioned with this file.

I do not have Diskeeper installed (never have) in fact never knew it ever existed till this annoying problem.
If its not part of XP Pro, then something has put it there, but how and what does one do to remove it to stop this annoying auto starting of the hard drive every 15 minutes exactly.

I note in my Windows/System32 the file dfrgfat.exe and dfrgntfs.exe
In Windows/Prefetch/DFRGFAT.EXE-03D95883.pf
I have FAT32 on my hard drive reason the dfrgfat.exe starts up.

I noted there is in Windows/System32/Defrag.exe
and in Windows/Prefetch/DEFRAG.EXE-273F131E.pf
These last ones are I presume the proper Windows defrag program

Regards,
John
 

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Re: Defrag starting by itself after a time period

Hi John, Welcome to TSF! :wave:

These two files that you mention are in the C:\WINDOWS\Prefetch folder.

The Prefetch Folder stores programs that have been opened by Windows® for 'future' reference for faster access.

You might like to try deleting them by either using the Search facility via the Start Programs Menu or, alternatively by navigating directly to the Prefetch Folder via the command prompt.

To do this...go Start > Run > type in C:\WINDOWS\Prefetch and Windows® will immediately open it for you.
Once in there you can quite safely delete the contents of the Prefetch Folder without causing any damage to your system.

You might also like to try this as well...

Go Start > All Programs > Accessories > System Tools > Scheduled Tasks, and delete the entries there.

Post back with the results, and if there are any other queries/concerns.

Kind Regards,
 

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Discussion Starter · #5 ·
Re: Defrag starting by itself after a time period

Hi John, Welcome to TSF! :wave:

These two files that you mention are in the C:\WINDOWS\Prefetch folder.

The Prefetch Folder stores programs that have been opened by Windows® for 'future' reference for faster access.

You might like to try deleting them by either using the Search facility via the Start Programs Menu or, alternatively by navigating directly to the Prefetch Folder via the command prompt.

To do this...go Start > Run > type in C:\WINDOWS\Prefetch and Windows® will immediately open it for you.
Once in there you can quite safely delete the contents of the Prefetch Folder without causing any damage to your system.

You might also like to try this as well...

Go Start > All Programs > Accessories > System Tools > Scheduled Tasks, and delete the entries there.

Post back with the results, and if there are any other queries/concerns.

Kind Regards,
Hi Dave, thanks for the welcome.

Do I ONLY delete the Windows/Prefetch/DFRGFAT.EXE-03D95883.pf
AND/OR also delete Windows/System32/dfrgfat.exe and dfrgntfs.exe files as well.

As I mentioned in original post, there is nothing in Scheduled Tasks, it's empty, this is what has puzzled me, why nothing showing about the 15 minute idle for the hard drive defrag to startup so must be in the registry somewhere. That not my area I like going into.

Regards,
John
 

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Discussion Starter · #6 ·
Re: Defrag starting by itself after a time period

Hi Dave, thanks for the welcome.

Do I ONLY delete the Windows/Prefetch/DFRGFAT.EXE-03D95883.pf
AND/OR also delete Windows/System32/dfrgfat.exe and dfrgntfs.exe files as well.

As I mentioned in original post, there is nothing in Scheduled Tasks, it's empty, this is what has puzzled me, why nothing showing about the 15 minute idle for the hard drive defrag to startup so must be in the registry somewhere. That not my area I like going into.

Regards,
John
Well folks, I think I've finally solved this annoying 15 mins auto starting hard drive dilemma.
I eventually found an accidental answer using Google.
So I put the answer here in case others may have similar problem.
Apparently this happens to quite a few.
All have said they have never installed Diskeeper which this file belongs too. (old version too)
What I'd like to know is "How did it got there" as it's not Windows defrag.exe

This is what I found.........

A quick search suggests they may be related to either
Auto Optimize which you can disable in Tweakui

http://www.broadbandreports.com/r0/download/665764~a4b77e8fbcc9aac932b9a37ea2e72a06/tweakui.jpg

or the registry key EnablePrefetcher

0 = Disabled
1 = Boot Prefetch Only
2 = Application Prefetch Only
3 = Both Boot and Application Prefetch (Default).


I downloaded Tweak UI from M$ and yes it showed an "Optimise hard disk when idle" was ticked on.
Clicked it off and now, so far no auto start defrag when idle. HOORAY......

At this point..... Problem SOLVED

PS. I deleted dfrgfat.exe and dfrgntfs.exe, rebooted PC and both those files were returned to the C:\Windows\System32\ folder.
So not easy to get rid of. Weird.
Anyway looks like Tweak UI shut it up, hopefully for good.

Thanks for the help.

Regards,
John.
 
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