Cannot Uninstall Citrix: The requested operation has failed

When attempting to install Citrix Receiver for Windows, Citrix Workspace cannot be uninstalled,  and shows the error message below
 
 
 
Error Message:
Citrix Workspace
The requested operation has failed. To see more information, click View Log. Contact the Help desk and provide the Log information
 
 
 
 
SOLUTION:
 
Uninstall Citrix using its Removal Tool: