Starting from build 6444, drivers are based upon the new DCH driver model, which runs on Universal Windows Platform (UWP) based editions of Windows 10 (i.e. the Windows 10 1809 Upgrade).
I cannot read the error message (the translators don't work for text in pictures), but can guess what it says. The problem you are running into is that the DCH drivers cannot uninstall the older, non-DCH driver. What you need to do is perform this manual process:
Hope this helps,