Windows 10 version 2004, on iMac 2017 via Apple Boot Camp; Device Manager shows that Radeon Pro 580 is installed, whose "properties" show that "the device is working normally". I am trying to update the driver in order to carry out an automatic update of Windows 10. The update process gets to 25% installation and then stops with the message that the driver needs updating. When I work through the links provided I am eventually directed by the Apple Support page to the AMD site and then to the Autodetect link, which, once started, always stops prematurely with a message something like "Oops, something went wrong; there is no driver present". I've tried it several times but always the same result. Any help would be much appreciated, thank you.
This is my third time of asking, but hopefully this time it is accurate! Thanks for your patience.