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#1 wfuhdehr

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Posted 26 January 2009 - 06:00 PM

Is there some defraggler that defrags the MFT? My system is the XP Pro SP2.
Thanks in advance.

Edited by wfuhdehr, 26 January 2009 - 06:02 PM.


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#2 Animal

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Posted 26 January 2009 - 06:25 PM

There is a new generation of defraggers that can work with the MFT and paging files. According to Microsoft, it is vitally important performance-wise to defragment the MFT and paging files. However, it is only safe to do so using boot-time defragmentation. Any "online" method bypasses the defragmentation APIs within Windows NT which Microsoft has provided for safe defragmentation, and can result in loss of data, data corruption, system crashes, or even loss of entire volumes.


From here: http://www.windowsnetworking.com/kbase/Win...rFileTable.html

Diskeeper and PerfectDisk 2000 and O&O Defrag DO NOT defragment these files online, but uses Microsoft's approved boot-time method.


And for those wondering what MFT stands for? It is Master File Table.

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#3 speedbird76

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Posted 27 January 2009 - 12:32 PM

A related thread here
http://www.bleepingcomputer.com/forums/ind...p;#entry1108371

Also, just FYI, only older versions of Diskeeper had to run a boot-time defrag for defragging the MFT. I am using the current version (2009) and fit defrags most of the MFT without having to boot-time defrag it. So, even with a normal defrag it brings the MFT to about 2 fragments, and these two fragments (which don't cause any performance issues) can be fixed with a boot-time defrag. I think this has been the case since Diskeeper v.2007. Don't know if the other defraggers do the same.




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