Uninstall that instance and then install the current version.

Uninstall that instance and then install the current version.

Hi,

I'm having a error message here when i install back the manageengine firewall analyzer, It says "an earlier version of firewall is already installed on this system. Uninstall that instance and then install the current version." I already uninstalled all the program files and no any files in add and remove programs. Please gimmi a solution for this. Thanks. :)