I found a link to this article on another forum. Maybe it will help some people with older machines.
http://www.guru3d.com/news_story/some_older_amd_cpus_do_not_support_windows_8_1.html
I found a link to this article on another forum. Maybe it will help some people with older machines.
http://www.guru3d.com/news_story/some_older_amd_cpus_do_not_support_windows_8_1.html