Hi Marco, please note that free licenses cannot be renewed and you would have to re-apply for a new license serial number. However, now Intel® Parallel Studio XE has now transitioned over to Intel® oneAPI. Since this transition, we have stopped providing free licenses for Intel® oneAPI.
Please click here: https://software.intel.com/content/www/us/en/develop/articles/free-intel-software-developer-tools.html, choose your required toolkit and download it. You do not need a license file to install the software.