Don't you love it when you go to reply to a comment but it is deleted by the time you finish writing?<p>Anyway, someone was asking why you'd <i>ever</i> want to defragment an SSD? Good question, I think. Two things:<p>1. Sequential access is still faster with SSDs, just not by a margin of infinity anymore. I guess this is because of prefetching in the controller of the drive itself?<p>2. To reduce bookkeeping overhead? You need less space to store the information "blocks 1-3" than "block 1, block 17, and block 59." I have no idea how NTFS works or anything, this is just a guess.
> Windows 10 is usually able to discern whether to defrag or run a harmless TRIM process on a drive, depending on its type. But if volume snapshots are enabled (so you can revert to a backup using System Restore), it will in fact defrag the drive even if it is an SSD.<p>As was commented in an earlier post of this story: this is only a concern if you have "volume snapshots" enabled.