factory reset

Lenovo Tab 4 Plus 8 - Unexplained high storage use I got my new Lenovo Tab 4 Plus 8 a couple of weeks ago. It's running Nougat 7.1.1 After initial setup, I uninstalled some apps, mostly the Microsoft Office trialware and Skype. When I finished this, I had about 7.8 GB of used space on the 16...