I believe, Sean meant, refer screenshot below.
Stardock Community Assistant
Per reply #7 i do not have this folder.
With this said, i renamed this file
and tried the in app Check for updates and it redownloaded the setup file and successfully installed version 4.21.
Since the in app update worked, i deleted the setup file that i renamed.
I suppose i will have to wait for the next update to be released to see if the automatic update prompt works, or if i need to delete the file again.