My Laptop upgraded to the W10 fall upgrade, version 1511 build 10586.3, today. I've seen a couple of problems and I installed new drivers to fix one of them but the other one I am lost trying to figure out what to do. The tray items for battery, sound, and wi-fi produce no text when hovering over them. This function worked in Windows 10 the first free version. It's not a big thing to worry about but maybe somebody else has seen it.