> I can't fathom why you and many others appear to be having problems with the 'wushowhide' file from Microsoft.
Me too! However, after doing a System Restore (*sigh* yet again), I rushed to start wushowhide immediately the machine restarted, and this time it did work.
It looked like it wasn't working, until all the available updates had been applied, after which wushowhide (finally) showed the excluded KB4056892.
Thank you for pointing out this program. In my case, at least, it has worked, albeit only after the second attempt.