I have installed Dreamweaver but when I want to activate the trial I get the message that there was something wrong.
Geprobeerd om de datum van je systeem te veranderen?
I don't mean to be pessimistic but I don't think it's possible to re-install a Creative Cloud trial when it quits early or refuses to work, as sometimes happens. See link below.
Ensure your computer meets/exceeds the min-requirements for Creative Cloud + all other apps.
You can join a paid plan and cancel within 14 days to receive a full refund, if that helps. See relevant links below.
How do I Cancel my Subscription?
Subscription & Cancellation Terms: