Display Manager 2.0 - Message at Startup: Uninstall prior Version

Hello,

Since I installed Dell Display Manger v2.0 on Windows 10, I keep receiving a message at startup, telling me to uninstall the previous version of DMM.

Unfortunately, there is no entry for any previous version of DMM at the control panel (Software & Features).
Neither I can find any installation folder/files at the system-disk.

I even tried uninstalling DMM2.0, reinstalling/uninstalling DMM1.x and again re-installing DMM2.0. Thou, it did not solve the issue.
There might be any "remaining entries" in the registry, or a service just don't get unregistered during uninstall...

Can anyone help on this topic?

Regards