Creative Cloud won't open, won't repair, won't uninstall, can't close services in Task Manager

My Creative Cloud won't start; I'm on Windows 10.  I've done everything to try and get it fixed from prior posts.  When I tried to repair it using the uninstall program, I get error 81, which I've tried to mitigate by closing services in the Task Mgr details tab.  I get the same error 81 when I try to uninstall it.  I've rebooted my PC three times in the past 15 minutes, and it makes no difference.  Every time I close one of the three AdobeCEFHelper.exe processes, it pops right back up.