I recently bought Lightroom and installed on one of my computes. I wanted to instal the program on another computer I have, using the same serial number I already bought and I'm not alowed as it says that the SN is not valid. What shall I do?
It is possible that you downloaded the Creative Cloud trial of Lightroom. The perpetual license key will not work. Uninstall the version on the second computer, this will not interfere with your catalog, preferences and personal files.
Download the appropriate version from the link below and install, your license key will be accepted and everything will be fine.
Thank you! Now it works. That was the problem.