Lightroom CC does not start.
I had LR 5.7 not Cloud, so I installed LR 5 Cloud and had 2 pcs. LR 5 on the machine. Then I got the opportunity to update the LR CC, but it would not start after update, comes a flash then it is gone.
I Rebooting the computer, and deleted LR 5 and uninstalled CC and installed again without help.
What is wrong?