I am still trying to find an answer to be honest.
Microsoft should be dealing with this given the number of computers that are having this problem. It was suggested that the problem was caused by a Microsoft update which resolved the security integrity problem with Intel processors but induced this problem into AMD based systems.
I was advised to remove the update KB4056892 but it reinstalls itself. Removing the update does not resolve this problem anyway.
It was then suggested that we update using KB4073290 but this does not work either.
https://www.catalog.update.microsoft.com/Search.aspx?q=KB4073290