Windows 10 with an ssd does a trim and not a old style defrag.


KenW

And Windows 10 also runs a 'good enough' defrag process in the background,
so that third party defrag programs aren't needed. I tried running
Defragler a couple times, but it made no noticable difference. It cleaned
up a few of the more noticable fragmented files, but left a lot as well.

And yes, SSDs don't need to be defragmented. Trim is defragmenting, it is
preparing currently unused sectors to be used again.