I have recently purchased a laptop: Toshiba C850D-125, PCC8E. it is running windows 10 enterprise: Version 10.0.19042 Build 19042.
At startup the display runs on the Microsoft Basic Display Driver and when I check in Device Manager the Display Adapter lists: AMD Radeon HD 7420G with a yellow warning triangle, Upon entering properties I am greeted with: Windows has stopped this device because it has reported problems. (Code 43). If I disable and enable the device it removes the warning and greets me with: This device is working properly, Upon entering properties. But still the display is running on the Microsoft Basic Display Driver at only 1.00hz.
I have tried multiple reinstallations of device drivers from Windows Update, AMD Drivers and Support, Toshiba (Dynabook Driver Downloads) each time clearing the with both AMD cleanup utility and DDU. Have turned off Windows Update and Real time protection in Windows Defender whilst attempting the reinstalls and nothing seems to work
I am at my whits end and would appreciate any advice
Thank you