For evaluation, please select the option to Evaluate the product during install. No serial number is required for this option. This will allow you to evaluate the product for a full 31 days after installation. See below example image.

The option to activate the product requires a serial number and is intended for customers with commercial, academic, student or non-commercial versions of the product. If you select this option, your evaluation period will end 30 days after registration (not installation).

Option 1 and 3 can be used for non evaluation. For option 3, the installer will ask you to locate the license or you can place the license file "*.lic" in the following directory, making sure not to change the license file name:
On Windows*:
<installation drive>\Program Files\Common Files\Intel\Licenses
i.e. "c:\Program Files\Common Files\Intel\Licenses"
Note: if the INTEL_LICENSE_FILE environment variable is defined, copy the file to the directory specified by the environment variable, instead.
On Linux*:
/opt/intel/licenses
On MAC OS* X:
/Users/Shared/Library/Application Support/Intel/Licenses

If you have further questions, please contact Intel® Software Startup Help team at https://registrationcenter.intel.com/RegCenter/SelfHelp.aspx or Submit a request at User forums: /en-us/forums/ [ NOTE: Please don't submit your serial number information or e-mail address in the User Forum request. ]