Frankly, i dunno.Tried everything...sometimes, mysterious things happen. For example, recently i fought with random BSD and freezing of my Win 10. Then all of a sudden, everything seems just about right. I run memory tests, SFC, DISM..., watcted BIOS-settings, I tried everything, even teared my PC apart (checked HDDs) and put it back together. Now- fingers crossed - it's nice and dandy.