I just upgraded my windows OS to 10 version. I had got an offer from microsoft to upgrade before september end. In fact many of us had got the offer. The whole upgradation process was so smooth that I never realised when it got done. The GUI is so good and user friendly. One note feature is the one I liked much. Even there are sone good apps like microsoft movie app where we can watch HD movies. Snapshot optiin is also there. Its browser is so fast. It is other than IE. I feel that this is just like android. Full of apps. Good experience.