Click on "Installation".
Click on "New SQL Server stand-alone installation or add features to an existing installation".
Click on the "OK" button.
Click on the "Install" button that will install the setup support files.
Click on "Next" to continue.
Specify the edition as "Enterprise Evaluation" in the "Specify a free edition" box and click on the "Next" button.
Check the check box “I Accept the License Terms” and click on the "Next" button:
Click on the "Select All" button then click on the "Next" button.
Choose the “Default Instance” then click on the "Next" button.
Just click on the "Next" button.
Set the Account Name as indicated in the diagram then click on the "Next" button.
Select “Mixed Mode Authentication” then provide the password for the sa account then click on the “Add Current User” button then click on the "Next" button.
Click on the “Add Current User” button then click on the "Next" button.
Just click on the "Next" Button.
Just click on the "Next" Button.
Just click on the "Next" Button.
Click on the "Install" button .