and when I tried to run these commands:
Dism /online /cleanup-image /scanhealth and Dism /online /cleanup-image /restorehealth from an Admin prompt.
I got a message saying each of them was "unknown"and again referring to error 87. I did not make a typo
@showmethefacts, what is the exact text of the message you get when you go to an Admin prompt and type 'dism /?'. Also check the size and date of dsm.exe in c:\windows\system32. Mine (Windows 8.1 64bit) shows '2014-02-22 04:36 AM 275,456 Dism.exe'.
I have reported the problem with getting support through http://www.answers.microsoft.com and http://www.support.microsoft.com to Microsoft.