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dfrg.msc won't open


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4 replies to this topic

#1 MFC1982

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Posted 13 September 2012 - 04:41 PM

All right! Here is my second computer problem. I have tried to open up Disk Defragmenter, but it won't open. Here's the message that it says:

MMC cannot open the file C:\WINDOWS\system32\dfrg.msc.

This may be because the file does not exist, is not an MMC console, or was created by a later version of MMC. This may also be because you do not have sufficient access rights to the file.

Just like my other Windows XP problem, this has been happening for the last week. Again, I ask for your help.

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#2 noknojon

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Posted 13 September 2012 - 05:28 PM

MMC cannot open the file C:\WINDOWS\system32\dfrg.msc
This may be because the file does not exist, is not an MMC console, or was created by a later version of MMC.
This may also be because you do not have sufficient access rights to the file.

To resolve this issue, follow these steps:
Method 1:
1. Click Start > Run Box, type cmd, and then click OK.
2. At the command prompt, type cd %windir%\system32, and then press ENTER.
Note The %Windir% folder is the folder where you installed Microsoft Windows.

3. Type the following commands. Press ENTER after each command.
regsvr32 msxml3.dll
regsvr32 dfrgsnap.dll
regsvr32 dfrgui.dll

4. Type exit, and then press ENTER to close the Command Prompt window.
5. Restart the computer. << Important

Method 2: Go to C:\Windows\Inf, right click at dfrg.inf file and select Install.

Do you have a XP CD ?? This mau be needed for the last step ??
Method 3: If the above methods does not help, run the system file checker tool.
You may do a System File Checker (SFC) scan on your computer. SFC tool scans system files and replaces incorrect versions of the system files by using the correct versions.

To run the System File Checker tool, follow these steps:
1. Click Start, Run Box Type cmd in the Run box.
2. Right-click cmd in the Programs list, and then click Run as administrator. If you are prompted for an administrator password or confirmation, type your password or click Continue.
3. At the command prompt, type the following line, and then press ENTER:
sfc /scannow
If asked for the CD insert it in the tray -

Thank You -



#3 narenxp

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Posted 13 September 2012 - 09:49 PM

If nothing works try this

Go to

C:\Documents and Settings\USERNAME\Application Data\Microsoft\MMC

Delete the dfrg file and start it again

good luck

#4 MFC1982

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Posted 14 September 2012 - 04:48 PM

You guys can lock this thread up now. When I was getting the Windows Update fixed & Service Pack 3 installed, the Disk Defragmenter came back. Thanks for all your help. That just leaves the problem with my laptop left.

#5 luke127

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Posted 14 September 2012 - 04:51 PM

I was going to say SP1 is a bit far back or SP2 as well. SP3 fixed all those bugs and things that came with SP1 and 2.




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