Can't install, keeps saying later version is already installed .. set up will exit!

Trying to install, it keeps saying a later version is already installed and set up will exit!  Deleted it and re-started pc so trying to re-install again but won’t let me!  

Hi,

can you please attach error message screenshot?
Also kindly clarify which version are you trying to install and how you uninstalled eM Client when you first tried.