Ever since the Windows 10 update, the battery life in my Lenovo 7844P8U has been drastically reduced. With the battery that is in it, it used to last 10 hours on Windows 7, now it will only last 5. I have tried going in and turning off location, apps that are running in the background, I even changed the screen to dim at 100% when unplugged. I am at a loss and have no idea what to do now. Any ideas? I need this laptop to last around 10 hours. Any help is extremely appreciated!