Logon to your Windows server and open IIS

Step 1 – Select the server (top level) on the Connections pane

Step 2 – Double click on Server Certificates

Step 3 – Click on Create Certificate Request

Step 4 – Fill in details for the certificate

Enter the following details:

Step 5 – Select Cryptographic Provider and Bit length

Step 6 – Save Certificate Request

Step 7 – Complete Certificate Request

Step 8 – Specify Certificate Authority Response

Select the certificate you receive from the Certificate Authority.

Fill in the fully qualified domain name.

Select certificate store as Web Hosting.

Step 9 – Bind the new certificate

Set new binding to the host on Port 443.

Select the newly installed SSL certificate from the dropdown.

Click View to verify.

Step 10 – Verify SSL installation

https://www.sslshopper.com/ssl-checker.html

https://www.ssllabs.com/ssltest/