What Files Are Defragged at Boot Time Defrag?

On my Windows 7 x64 Home Premium machine I have set Defraggler to do a boot time defrag at every boot. What files are defragged during this process? MFT? System files? Pagefile? What about regular files that are normally defragged during the standard defrag process?

My recent list (23 June 2011).

    C:\pagefile.sys
   C:\WINDOWS\system32\config\AppEvent.Evt
   C:\WINDOWS\system32\config\default
   C:\WINDOWS\system32\config\SAM
   C:\WINDOWS\system32\config\SecEvent.Evt
   C:\WINDOWS\system32\config\SECURITY
   C:\WINDOWS\system32\config\software
   C:\WINDOWS\system32\config\SysEvent.Evt
   C:\WINDOWS\system32\config\system

There's a full list of these maintained at http://www.piriform.com/docs/defraggler/technical-information/boot-time-defrag

Thanks guys!

Topic Stickied

No hiberfil.sys ??

Richard S.

I don't know what files it defraged at boot but it did a great job. Take a look at the random read speed screenshot.

No hiberfil.sys ??

Richard S.

Where would be the benefit ?

I assume you might save a second or two upon using hiberfil when closing down or starting up,

but is it worth extending the start-up delay by defragging many Gbytes with a Boot Defrag ?

Is there any way to make it perform a full defrag on boot? This way the OS doesn't get in the way with system files.

Is There anyway to defrag the MFT?- Even by another program... (I replaced Win defrag as default, with DF)

Boot Time Defrag

Boot-Time Defrag – defrags the system disk during the boot time, before the whole operating system is loaded. This allows Defraggler to defrag the files which are blocked after the operating system is loaded. At the moment following files are defragmented during the boot time defrag:

  • C:\pagefile.sys
  • C:\WINDOWS\system32\config\AppEvent.Evt
  • C:\WINDOWS\system32\config\default
  • C:\WINDOWS\system32\config\SAM
  • C:\WINDOWS\system32\config\SecEvent.Evt
  • C:\WINDOWS\system32\config\SECURITY
  • C:\WINDOWS\system32\config\software
  • C:\WINDOWS\system32\config\SysEvent.Evt
  • C:\WINDOWS\system32\config\system

Ultradefrag can defrag the MFT. I hope Piriform will include this sometime in a future version because Defraggler is my main defragmenter.

Ultradefrag can defrag the MFT. I hope Piriform will include this sometime in a future version because Defraggler is my main defragmenter.

Re: Ultradefrag (Thanks!)-

I didn't like Ultradefrag as a full defrag (really slowed system), but I'll try running just the MFT part...?

Re: DF include MFT defrag?

DF would probably have to make MFT defrag an separate option... from Boot defrag everytime (I love this performance option!), as MFT can take awhile, whereas Boot everytime is about 1sec.

BTW! DF v2.10.424 is working Good (un-like v.413 for me)!

No leftovers at end of HD, that have to be manually defraged... (like .391).

No problem with 1sec fast boot defrag everytime (Love this performance setting!).

No need for more than 2 passes (best for performance!), to get 0sec completion.

HD activity Seems to settle down faster (I 10min reboot 4-times after a full defrag, to get best performance).

Good to hear 2.10.424 is performing nice for you.

Regards.

Re: Ultradefrag (Thanks!)-

I didn't like Ultradefrag as a full defrag (really slowed system), but I'll try running just the MFT part...?

This didn't work out for me as I was Very Confused trying to figure out Ultradefrag's umpteen Boot Script Options (more confusing than JKdefrag...)?

I was trying to figure out how to defrag Just the MFT, but it appears that I'd have to boot defrag the whole drive?

Any help would be appreciated!? :wacko: