try starting in safe mode with networking by pressing F8 before windows starts to load this will cut out a lot of the services etc that start up when windows starts normally. Once running use google to find hotmail sign in. If this works you know it is something that starts with windows which is causing your problems. 1 silver surfer to another.
OnePlus 2 review: Hands on with the £239 OnePlus Two '2016 flagship killer'