RevitWorker.exe was not found

 I have seen the old posts with various possible solutions.  None of those have worked in my instance. 

I am getting the "RevitWorker.exe" not found message.

I have done the below, checked Windows update, ensured the folder and registry folder are "full control"

Restarted machine more times in the last couple days than it has ever been restarted.....

https://knowledge.autodesk.com/support/revit-products/troubleshooting/caas/sfdcarticles/sfdcarticles/Error-RevitWorker-exe-was-not-found-at-launching-Revit-program-crash.html

I am about to reinstall it again just in case.....

Thank you in advance