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Can't Defrag


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#1 bryan5255

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Posted 18 September 2008 - 04:42 AM

Whenever I try to defrag my computer I get a pop up error saying

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

I previously had a virus on my computer so I checked to make sure the file was actually still there. I even copied over the file from another computer in case it was corrupt, but I still got the same error. I've also have gotten similar errors when I try to do a windows search or play music on WMP. However not being able to defrag is the main thing I am worried about right now. Not being able to defrag is slowing down my computer and not freeing up about 20 gig I know I've got, but I don't think my computer will find unless I'm able to defrag it. Any help would be greatly appreciated.

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#2 E-Mu

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Posted 18 September 2008 - 05:04 AM

Hey,

First try using Scannow sfc;

To do this simply go to the Run box on the Start Menu and type in: sfc /scannow, then hit enter

Reboot and try to defrag.

Hopefully this will fix any corrupt files and solve the problem.


If not then try re-registering MSXML;

To do this go back to the Run box and type in : regsvr32 msxml3.dll, then hit enter

-Then-

Go back to the Run box and type in : regsvr32 /u msxml3.dll, then hit enter

Reboot and try to defrag.


Post back with results.

E-Mu
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#3 dc3

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Posted 18 September 2008 - 07:03 AM

If this has happened within the last couple of weeks try running System Restore.

Start> All Programs> Accessories> System Tools> System Restore.

When this opens make sure that "Restore my computer to an earlier time" is chosen, and click on Next>.

The dates appearing in bold are the dates that you can restore to, click on the date that you want and then click Next> to start the System Restore. This may take a long time to complete, and when it is done it will restart your computer. When the computer restarts and you have logged on as the administrator a Restoration Complete page will appear, click on OK to complete the process.

Just out of curiosity, if you go to Start> right click on My Computer> Manage> Disk Defragmenter, does this work?

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#4 hamluis

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Posted 18 September 2008 - 07:47 AM

How large is C: partition? How much free space currently on C:?

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#5 Wingman

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Posted 18 September 2008 - 07:48 AM

Have a look at this article...it contains several possible solutions... Fix MMC Cannot Open the File C:WINDOWSsystem32dfrg.msc Problem
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#6 bryan5255

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Posted 18 September 2008 - 10:59 PM

Thank you all for your help. I ended up following the directions from the link 'Wing Man' provided as it seamed to contain all of the other solutions. I got to solution 4 on the link before I tried to defrag so I'm I don't know for sure which one solved the problem, but either way I am now able to defrag my computer. Again, thank you all.

#7 E-Mu

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Posted 19 September 2008 - 03:52 PM

Good news!

And we can use the article for future reference.

E-Mu
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