P: Card reader not automatically found (Windows Autoplay registry issue)

I had Lightroom 5.7 installed when I downloaded Lightroom CC ( Windows 8.1) and when I used my card reader it defaulted to 5.7 for loading files. I uninstalled Lightroom CC and all works well except that if I put a card in my reader and lightroom CC is not on I get a fault message to say that the program cannot be found. I have this correctly selected in preferences.