@OlivierDanoux  

Can you confirm from which link you installed the Pega Trial software?

It does not look like you have fully registered your company on the pega website (I cannot see it on my.pega.com either).

If you are logged into the Pega website using a recognized company-affiliated user email then you should be able to access the following:

https://www.pega.com/platform-trial?check_logged_in=1

Then, to confirm your account, please provide a business email and current phone number. Trial set-up requires your accurate contact information.

You will then need to look out for your confirmation email. Once you confirm your account details, you can start your 30 day free trial.