@Fernando :
thanks 
BTW Fernando, a friend wanted to test the Openfabrics 1.5 nvme driver but was not happy with results, now he says he want to uninstall the driver to return to win10 native driver, but says option is greyed out in device management, sorry if offtopic but is there a quick way to uninstall it and revert to native driver?
EDIT: asked friend to go device manager → storage controllers → rightclick ofa driver and select properties → “roll back driver” , if and if that does not work for some reason told friend to try second method:
device manager → find the openfabrics driver under storage controllers → right click and select properties → update driver → “browse my computer for driver software” → " let me pick from a list of available drivers on my computer" → the standard win10 nvme driver should be here, select it and update to this driver ,
hopefully this will work, awaiting results and will know later, but if you know a 100% solution that is easy would appreciate it anyway
thanks again!