OK thanks - I tried that, would not let me remove the OPM.db file as in solution 2, i uninstalled CS6 versions, i uninstalled Creative Cloud desktop app and then downloaded latest and installed - however, with continual workload, I am not about to remove all Adobe software as suggested in Solution 4! Even in the Creative Cloud app where it shows install new apps, there are only CS6 versions showing?
I have just uninstalled creative cloud app manager again - go to download latest version and the message is - we are currently experiencing problems, please try again later.