intellitype pro download problem

I have the Microsoft Digital Media Pro Keyboard with Intellitype Pro.

The keys stopped responding and I uninstalled the software, and tried to re install.
It keeps saying , cannot install until previous version removed, but I removed it with Revo Uninstaller and it no longer shows up.

I tried to do a rollback, but all my restore points are gone.

I have a complete backup with Acronis and could do a re install, but I would like to try and first install the software if possible.

Thanks for any advice.

 

Solved it - had to delete all registry entries.