Except for a nagging Windows "Important update" for which there's no explanation and never had something like that even close to my computer or network, everything quiet on my front too. That may be because I don't mess about with too many custom stuff if I don't have to. Pretty well all stock in windows except for some stuff I am very sure it's safe to do. Occasional BSOD (once a month or even less) I can attribute to pretty extreme OC I have. Cleanly uninstalling programs, not needlessly cleaning system with "miracle programs", pretty well secured with AV , Malwarebytes and McShield for USB memory etc helps a lot.
It took some doing but right now it's smoothest running windows I ever had.
Latest problem I had was with Flash-FF combination (was crashing repeatedly) sorted itself with FF 31.0.