The interface relies on Internet Explorer for functionality so, even if you don't use it, install IE11 and make sure all updates are in. That makes things more secure anyway.
As you wish to remove the software anyway you could achieve this by running the MCPR cleanup tool. Reboot immediately afterwards.
Moved to SecurityCenter as a better spot for it.
Are you seeing the partial UI while Openin McAfee Application..! This helps to differentiate if there is a problem with Uninstaller window alone or with IE / VC++