I just installed windows 1607 to check if its less problematic than newer versions when it comes to how it handles hdd. And im in shock because i feel like im "flying above the ground" when using it. Everything is so smooth and instant wow. Newer version seems delayed for example clicking on start menu feels noticably lagged here non existant. Also dpc latency does not jump like crazy storport.sys especially. I think they droped support for hdd and optimized it for ssd only cuz i imagine they thought "2k20 and ppl use hdd kekw"