Windows 10: What's the trimming phase in Defragment and Optimise Drives?

After defragmenting and consolidating (FYI, it's the phase that packs all the files together so it keeps the files from fragmenting), I managed to find a phase called trimming.


I left my laptop to sleep while it was defragging (never really a good idea, I suppose). It loves hibernating after a while (inconvenient, you get a bonus point if you can help me figure that out). So, it hibernated while in the middle of defragging.


By accident. Not my fault.


I woke it up to find the stage, but it went by within a few seconds.


WHAT DOES THIS MEAN?!


(Don't forget your bonus point for helping me find out why my laptop hibernates after a while. It could be to do with the hard drive shutting down, as seen in the Power options in Control Panel)

:)

 

Defragment and Optimise drives

I started up the Defragment and Optimise drives utility yesterday and I noticed that both my D: drive and Z: drive were not present there. Both these drives happen to be partitions on the same disk. All other drives (including removable drives) were visible.
I tried running chkdsk with /r parameter and it returned no errors/bad sectors. How should I solve this issue?

 

Defragging

Having tried all defrag options listed am not having any success optimising drives. Have downloaded Auslogics Defrag and used ok but windows still says drive needs optimising and still won't work. HELP please

 

defrag (optimise) not working

Its set to weekly (default) - and as far as I understand, ssd should be defragmentet (trimed) every 4 weeks, regardless of that setting (one week). Can someone at Microsoft add that information about ssd drives in Optimise? Btw is that information correct?

Its day 33, and still nothing. I know I can do it manually, and I guess ssd actually trim itself regulary. I have another very similar computer and trim in Windows Optimise is working there. It optimised ssd after 28 days.

Any idea why it is not working?

I had Windows 8.1 before upgrade to 10 and it was working normally. I can't remember was that last optimise on 10/8 triggered automatically or manually by me. I already had Windows 10 at that time. I think I triggered it manually. It says 4% on hdd after
I have run Analyse. So, now its 2 discs it should optimise, hdd after a week and ssd after 28 days.