I'd go to Device Manager and check for ! or ? next to any entries. If there, check w/Acer for the proper driver(s).
So, I am writing this from an ACER Aspire E 15. Crap computer, a fine netbook for email, Facebook and Skype. Windows 10 upgrade from Windows 8.1 worked just fine. But now I can't use the laptop if it is plugged ibto a wall socket. If I plug my charger into a wall socket, my screen goes black. The update hs rendered this thing useless. I have to run it on battery until its dead, then I have to wait until the battery recharges. ***?