Jump to content

Defraggler did not run as scheduled


Recommended Posts

I downloaded the Defraggler and ran it a few days ago.  I set it to defrag on a Friday night schedule starting 11/12/2021.  When I checked today [Saturday 10/13/2021] it had not run.  I set it to run daily.  It still is not running.  Did I miss something?

I just ran a full defrag a few days ago.  Yesterday I did an analysis.  It said there was 0% fragmentation with 1000+ fragmented files and 2000+ fragments.  Fragmentation time was calculated at >1 day.  It actually did take almost a day.  Why so long when I just ran a defrag a few days ago?  And what does it mean when it says 0% fragmentation with that many fragmented files and fragments?

I am running a frag on an external HDD.  Analysis said there was 0% fragmentation with 1 fragmented file and 2 fragments.  It's taken several hours already and was showing 0 fragmented files and 0 fragments a couple of hours ago.  Why so long with this few fragmented files/fragments?

Thank you.

Edited by jakestone
Link to comment
Share on other sites

  • Moderators

I don't know about the scheduling, was your computer turned on at the scheduled time?

The percentage shown is a percentage of the drives capacity.
So if it's a (multi) TB drive a couple of hundred files will still be a very low percentage, and may be that low it gets rounded down to zero.

As for the time it's taking then I suspect that you are doing a full disc defragment, which is also a 'consolidation defrag'.

Consolidation is the type of whole disc defrag that was needed in the past with smaller drives to get all the files scrunched up together and free up contiguous space on the drive. (It would/could actually fragment files to fit them into a smaller number of clusters, thus freeing up more whole clusters - and Defraggler can also do that at times).

With todays large drives consolidation is rarely needed, there is usually plenty of free space, and so it's usually quicker just to do a 'file defragment'.
That gets your files into one piece each so that they can be read slightly faster from the drive.

By default Defraggler does some of both, and with todays larger drives it's the consolidation that takes time. (And the bigger the drive the longer it can take).
eg. in your second example it's not just defragging that 1 file, it's doing that then consolidating the whole disc.

Most of us in the know do a file defrag only.

  1. In Defraggler do an Analyze.
  2. In the 'Status' pane where it shows the results click on the button that says 'View Files'. (Or you can select the 'File List' tab above that pane).
    That brings up a list of the fragmented files with a checkbox next to each one, and another checkbox right at the top next to 'Filename'.
  3. Click on that top box to select all of the files, and the button at the bottom will change to say 'Defrag Checked'.
  4. Click on 'Defrag Checked' and it will then defragment the fragmented files only, without trying to consolidate everything else on the drive.

Here's a screenshot of a completed file defrag I've just done (254 files, took about 3 minutes):


Obviously that's much quicker than a full disc consolidation, although it can still take time if there are a lot of files and/or fragments.
Done weekly my file defrag usually takes about 5 to 10 minutes.

One thing to note is that a file defrag will often finish saying that some files couldn't be defragmented. Here's the one I've just done:
That is nothing to worry about, it's just that some of the fragmented files have been re-opened/changed by the system whilst you were analyzing/defraging so then couldn't be defragged. (Often they are Windows Defender files, but there are others. Sometimes it may seem you will never be able to defrag them because they are alway open).
Everything else will still have been defragged, and the ones that couldn't be defragged skipped till next time.

In this case with the defrag I just ran to get the screenshots, the files that couldn't be defragged were some Firefox files - because I had Firefox open and it was using them, so they had changed since the Analyze was done.
Defraggler is smart enough to know that something had changed since the Analyze, and so that it shouldn't touch them without a new Analyze.
You can see that the files above and below (even some Firefox files that hadn't changed) have been defragged and are now in one piece each.


*** Out of Beer Error ->->-> Recovering Memory ***

Worried about 'Tracking Files'? Worried about why some files come back after cleaning? See this link:


Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.