The MS Compatibility Center has been taken off the MS windows site. All my shortcuts to the site now wind up on the Windows 10 install page. This was the link http://www.microsoft.com/en-us/windows/compatibility/win8/CompatCenter/Home?Language=en-US
It winds up here-- http://www.microsoft.com/en-us/windows
It was a very handy site to check hardware and software for windows 8 and 10. It was available earlier today and suddenly it's gone. Even the shortcuts to the Center on MS pages go to a diff page. Oops, I just checked and the links have been removed on MS pages.