abacab
.... And always make a full system image before updating, so a rollback will be painless, if needed.
+1
I'm still on Win 8.1, and wouldn't feel safe without my regular backup images. In fact, backup images have been saving my bacon for about two decades now.
Given Win 10's rather quirky nature with updates, the first screen of the installation should read: "DON'T EVEN THINK OF INSTALLING THIS UNTIL YOU'VE DONE A SYSTEM IMAGE!".
And no, folks, System Roulette, er, I mean, Restore, doesn't count!