I installed LR trial version with CC and PS.
I used it to create some albums and to modify several pictures; as satisfied I then decided to buy the standalone LR and received the serial number.
When trying to licence the software I get the message that the licence is invalid.
How can I licence the software without loosing the changes done?
Uninstall the CC version of Lightroom
Install the Stand-alone version.
Enter your serial number when prompted.
Uninstalling Lightroom does nothing to your existing catalog or work you've already done.