Hi RahulKAR,
what's funny with these updates, that for example I suggested Gordo to install KB4490481 which was also the last update my laptop could install. And this update also installed fine for Gordo. Any further update, starting with KB4493509 goes wrong. And searching through news, there are alot of people having problems with these last updates making them doing repair upgrade..But as Gordo said, even reinstall is not a solution anymore, it's not working for him. Also someone at Youtube said, that he contacted Microsoft about these problems, and they said that the only solution is doing repair upgrade or reinstalling Windows. So I am really starting to think that it's not problem with our PC or laptops.