I have 24 years in I.T.
I read your reply to FullMetal.
Andavari, there hasn't been an MS Windows OS that hasn't included a defrag. The early Windows OS defragger was written by Executive Software, which is now Condusiv.
So, you'd be wrong when you stated to FullMetal with..." OSes like Win10 automatically defragment on there own".
I see this all the time in Forums. Forum Members replying to other Forum Members who are looking for help, making statements as if they are correct answers... that in fact, are incorrect... and without any referencable info to support their assertions. The issue is lack of research. People see a blurb and take it as gospel, when in fact they should always verify all infomation put forth. And it's simple enough to do!
Here is the referenceable info to my assertion. https://support.microsoft.com/en-us/help/4026701/windows-defragment-your-windows-10-pc
StageMan, MCSE (since 1995)
Note: MCSE was the acronym for Microsoft Certified System Engineer. We were straight up Systems Engineers that implemented and administered the Windows NT Architecture. MCSE is now the acronym for Microsoft Certified Solutions Expert.