Defragmentation Doesn't complete

There are a few desktops in my office that needed to be defragmented.  The defrag runs once pretty well, but doesn't completely defragement it.  When i try to run it again, it starts normally, but only gets to 3% before it ends again.  I can restart it and every time after it gets to 3% and says it is complete.  Is there anything I can do so the defrag runs completely?
Havis-ShieldsAsked:
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simpswrCommented:
and if all else fails . . run defrag in safe mode
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CallandorCommented:
Are you sure that your disks are fragmented?  What are you using to determine this?  I would suggest running some benchmark programs to find out if they really are underperforming, such as 3DMark05 or Sisoft Sandra.
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phototropicCommented:
What is your operating system? Defrag in XP is stable, but 98/ME have to be run in safe mode, or they will take hours to complete. Every time there is the slightest system activity, defrag interprets this as the drive having changed and it goes back to the beginning.
Try running defrag in safe mode.
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SteveG00000Commented:
Press CTRL/ALD/Del and look at all the processes, select USER NAME, look at the processes you have running and end task on all but explorer and taskmgr (making sure you are not connected to the internet at the time as you will not have any protection running) Once done, close task manager and retry defrag.
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freebuddyCommented:

Clean disk from unused files...usually the defrag needs a wide range of virtual memory to be completed, so make sure of that.

Thanks,

Freebuddy
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phototropicCommented:
But what is your operating system?
As I said above, if it is XP and it does not complete, that implies a problem with system files.
If it is 98/ME, either run it in safe mode or press ctrl-alt-del and kill every background task except "explorer" and "systray".Then it should complete in one run.
If it doesn't, post back
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nobusbiljart fanCommented:
before running a defrag, i would suggest running a disk scan for errors. if there are errors on the drive, it can cause many bad things to happen.
if the above does not help, try running sfc /scannow from the run box
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phototropicCommented:
Havis-Shields,
was the above helpful in resolving your problem?
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Havis-ShieldsAuthor Commented:
I am running windows XP.  I ran the defrag in safe mode and it worked much better.  

However, it did not complete and is still fragmented.  It is telling me some of the files coul not be defragmented, and a lot of them appear to be system files.  Any suggestions on how to resolve that?
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phototropicCommented:
OK. Defrag needs at least 10% free space in order to run. It actually says it needs 14%, but it will run with 10%.
Do you have that much free space?
Files in use cannot be defragmented, that's why it works better in safe mode.
Which files does it say it cannot defragment? Files in use could include parts of the Registry, virtual memory,

There are plenty of free defrag utilities on the internet. Here is one:

http://www.kessels.com/defrag/index.html

I have not tried it. I find the Windows defrag to be adequate.
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simpswrCommented:
. . " However, it did not complete and is still fragmented.  It is telling me some of the files coul not be defragmented, and a lot of them appear to be system files " . .

This is one of the tings that was fixed in SP2 . . have you upgraded to SP2 yet?

NTFS systems are not as sensitive to defragmentation as the FAT based systems were . . you will likley notice on difference in performance
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Havis-ShieldsAuthor Commented:
Phototrpoic

I have 25% free space, so that isn't a problem.  The files that had a problem were mostly registry and windows system files.  

simpswr:

I am running SP2, and all patches are up to date on the computer.
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simpswrCommented:
Well . . that ain't the problem!
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nobusbiljart fanCommented:
did you run a disk scan for zerrors,  like i suggested? or run chkdsk /f from the run box
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Havis-ShieldsAuthor Commented:
nobus,

I did run a disk scan, and it completed successfully.
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nobusbiljart fanCommented:
maybe something wrong with your system files; try running sfc /scannow from the run box
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