Having updated Lightroom from V5.7 to V6, it now will not start. Not by using the creative cloud, not by find the .exe file. Nothing happens, help!
Have you tried logging out of your CC desktop app, then logging back in again? Quit/Restart won't work, but logging out and back in should. See here: https://helpx.adobe.com/creative-cloud/kb/sign-in-out-creative-cloud-desktop-app.html
Yup, that did it. Thanks!