GenialityOfEvil

So, I have a file with 24% fragmentation and quite a few freespace clusters on a 4TB drive. Is it best to run a freespace defrag first, after or even both? I've noticed that it still tends to leave some holes, I assume because there aren't any later files small enough to fill them. Normally I just manually defrag large files that have a lot of fragments then run a quick defrag but that seems to make the freespace gaps worse.