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#11
Thanks for clarifying. Hopefully the OP understands some the choices being made by the software being recommended.
I haven't used Defragler for some time now but it depends what options you use. If you just do a quick defrag then you won't lose many, if any. If however you do the full thing and fill gaps then you are likely to lose a lot. It also depends what your cluster size is, If you have 16k clusters then you won't lose RPs. Don't ask me why I picked that up off the Defraggler forum when I first noticed the issue.
I like Puran free version which has a boot-time defrag that gets at System files which otherwise are running. It also allows you to schedule a Disk Check with the boot defrag which his convenient and thorough.
On the Additional Operations tab you can enable Intelligent Optimizer which will position most-used files so they are more readily accessible and results in performance improvements especially on older hardware.
I use Auslogics Disk Defrag since I only defrag my Data HDD. When I had the OS on a HDD, I used Puran. A Guy