Problem on Community Edition installation

I donwloaded the community edition and, during the installation, in the fifth window, the check boxes for selecting the products I want to install don’t appear. Only a blank window appears.
Could anybody help me?
Please exceuse me for my English.

Dear user,

Thank you for your message. Can you give us more details, such as steps, observations, of the problem? Thanks in advance!

Best regards,
Lilian Wong