SQL failed installation

Hello, I have not been able to insall SQL and therefore I cannot finish the lessons or projects. Kindly get back as I see that the previous questions by students seem to be unresolved. I don't get a zipped file with the URL, it opens to a page with 'reconfigure' button and options like Add, Modify etc. The tutor says it's easy to install and gave no directions to open the workbench. Kindly ensure you guide us through the process when the course especially claims to be beginner-friendly. Thank you.