Jump to content


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.

Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.



  • Please log in to reply
2 replies to this topic

#1 wfuhdehr


  • Members
  • 59 posts
  • Gender:Male
  • Location:Svalbard
  • Local time:02:40 AM

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.

BC AdBot (Login to Remove)


#2 Animal


    Bleepin' Animinion

  • Site Admin
  • 35,751 posts
  • Gender:Male
  • Location:Where You Least Expect Me To Be
  • Local time:04:40 PM

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.

The Internet is so big, so powerful and pointless that for some people it is a complete substitute for life.
Andrew Brown (1938-1994)

A learning experience is one of those things that say, "You know that thing you just did? Don't do that." Douglas Adams (1952-2001)

"Imagination is more important than knowledge. Knowledge is limited. Imagination circles the world." Albert Einstein (1879-1955)

Follow BleepingComputer on: Facebook | Twitter | Google+

#3 speedbird76


  • Members
  • 27 posts
  • Local time:07:40 AM

Posted 27 January 2009 - 12:32 PM

A related thread here

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.

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users