Have just re-loaded win xp sp2 on my computer, but I cant defrag the drives, says "cant find c:\windows\systen32\dfrg.msc"Any idea's on how to put this right?regardsIan

Ian,Try launching Disk Defragmenter using this command (via Start/Run)%Windir%\System32\dfrg.mscWhat happens?Ramesh Srinivasan, Microsoft MVP [Windows Desktop Experience]

Just the same response Ramesh "MMC cannot open the file - 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 be because you dont have sufficient access rights to the file"Can this file be taken from the XP cd and copied to my computer?regardsIan

Ian,See if registering the three DLLs as stated in the following link helps.http://support.microsoft.com/kb/914231Ramesh Srinivasan, Microsoft MVP [Windows Desktop Experience]

Ramesh,I tried both the auto fix and the manual one to no avail, still says the same problem.I noticed that the same files are within internet explorer. I did have ie 8, but recently went back to ie 7, could this be the case? and if I download ie 8, what are the chances that it MAY restore the defragment function?regardsIan

Ramesh,I tried both the auto fix and the manual one to no avail, still says the same problem.I noticed that the same files are within internet explorer. I did have ie 8, but recently went back to ie 7, could this be the case? and if I download ie 8, what are the chances that it MAY restore the defragment function?regardsIan ========================================Just a thought...but it may be worth a try to install Win XP SP3.(FWIW...it's always a good idea to create a System Restore point before installing software or updates)Windows XP SP3http://tinyurl.com/5u5tzp or...http://www.microsoft.com/downloads/details.aspx?FamilyID=5b33b5a8-5e76-401f-be08-1e1555d4f3d4&displaylang=enAnd...the following free defrag tools may be worth a try.Auslogics Disk Defraghttp://www.auslogics.com/en/software/disk-defragDefragglerhttp://www.piriform.com/defragglerJohn Inzer - MS-MVP - Digital Media Experience - Notice_This is not tech support_I am a volunteer - Solutions that work for me may not work for you - Proceed at your own risk

I reinstalled sp 3 and ie 8 and defrag is now running!The reason I removed ie 8 was I was told it was slowing my computer down...now that its back it take atleast 3 mins from switching on the computer to when I can actually use it.Thank you for your help..I'm up and running again.regardsIan

Sorry to be a pain, but I just wondered if you could also help with this matter? I have a free anti-virus - AVG and I have also downloaded Microsoft security essentials - if I remove the AVG program, will security essentials act as my anti-virus within the security centrer?Ian

Sorry to be a pain, but I just wondered if you could also help with this matter? I have a free anti-virus - AVG and I have also downloaded Microsoft security essentials - if I remove the AVG program, will security essentials act as my anti-virus within the security centrer?Ian ================================There is a forum for Microsoft Security Essentials:Microsoft Security Essentialshttp://social.answers.microsoft.com/Forums/en-US/category/mseJohn Inzer - MS-MVP - Digital Media Experience - Notice_This is not tech support_I am a volunteer - Solutions that work for me may not work for you - Proceed at your own risk

I reinstalled sp 3 and ie 8 and defrag is now running!The reason I removed ie 8 was I was told it was slowing my computer down...now that its back it take atleast 3 mins from switching on the computer to when I can actually use it.Thank you for your help..I'm up and running again.regardsIan ================================You're welcome.Thanks for the update.John Inzer - MS-MVP - Digital Media Experience - Notice_This is not tech support_I am a volunteer - Solutions that work for me may not work for you - Proceed at your own risk