Defrag query

My laptop, which does not get used a lot, it's more of a back-up machine, does not seem to respond to defragmentation. I run Defraggler every week & today I also ran System Mechanic defrag but the drive remained 49% fragmented. I then ran the System Mechanic again but on the deep defrag setting, this took 1/2 a day to run & the fragmentation went from 49% to 50%.

What's going on???

Running Vista Home.
250 Gb HDD, 160Gb free.

 

Not a good idea to use different defraggers.
They each have their own way of sorting and filing.
They just fight each other when you go back and forth like that.
Find one that you like and use it exclusively.

Read this thread also.

http://forums.majorgeeks.com/showthread.php?t=220605

 

Hmm, first, if you rarely use it, defrag it rarely

Second, are you running it from an Admin account and is the defragger started as Admin (you can set this from the Properties sheet of the defragger .exe file)?

Third and for now, finally, don't use 2 defraggers as they may work in different ways to achieve their goals, thus taking much longer than is necessary. see my Post #19 in this Thread.


EDIT: looks like I took a long time prepping this one ^^

 

I normally just use Defraggler, it works fine on my XP desktop. I only used System Mechanic to see if it worked better but point taken about sticking to 1 programme.

I'm not logged in as admin, I don't have different users set up.

50% fragmentation is bad isn't it?

 

May also do better trying in Safe Mode with a minimum load running.

to satrow
That thread has already been linked to them.

 

It is also possible that you have some very large files that cannot be defragmented. You can check for such files with JDiskReport (requires Java RTE); use the 'Top 100' tab.

 

To my knowledge, the Windows disk caching is disabled when in Safe mode,
so activities involving intensive disk access, like defraging, can be Very slow.

 

Have you disabled the default defrag job in Task Scheduler? If not, this may be working against you.

I tried to acknowledge that in my edit