When I try to register the serial, the system tell me that I installed many times LR, but is not so.
I legaly purchased LR the 31.11.2015 (order nr AD006412405CH) .
And now I'm unabe to register, may because my old PC crash and I have to install them on a new system without unistall them?
How can I clear my license and start again?
Assuming this is for LR6, you need to contact Support and ask them to reset your activations.
Chat support - For the link below click the Still Need Help? option in the blue area at the bottom and choose the chat option...
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Serial number and activation chat support (non-CC)