Startsmart lost some files

I have just updated NERO 6 (not the reloaded version). My reason for this was that startsmart was giving me an error - this was a new problem which I hadn’t had before. Since upgrading smartstart still does not work - the error says ‘missing files please reinstall NERO 6’ which I have done twice but the erro message still appears. Everything seems to work OK if I start an individual application from the start menu but I would like software to work throughout having paid money for it.

Check and make sure you have the correct serial number, and did you run the Nero 6 clean tools prior to reinstalling?

I have tried both your suggestions, cleaning first and then reinstalling and everything is up an running. Thanks