But usually you don't need to uninstall the old driver and reboot, just install the new driver on top of it.
Try drivers from this list Downloads for Intel® HD Graphics 620
Select OS from right pull-down menu. Hit "show more".
To bypass message "best driver is already installed", "customized computer manufacturer driver" or "computer is not validated" install driver via have disk method as described at:
https://www.windowscentral.com/how-install-intel-beta-graphics-drivers-surface (ignore prolog about MS surface)
Important: current drivers for Windows 10 require anniversary update or newer
Thank you very much for the advice. I managed to install an updated driver without having to first uninstall the existing driver.
I now have driver version: 184.108.40.20601 released on 18/12/2017.
However, I still cannot detect the external display.
Do you have any other suggestions?
This message was posted on behalf of Intel Corporation
I understand you have an Asus* laptop with Intel® HD graphics 620 and the computer does not detect the second display. Let me try to help on this matter.
There is an updated driver available on the Intel website, please try the link below to get version 4944
Let me know your findings.