How to Create a Self Signed Certificate in IIS
Step-by-step Guide to create a Self Signed Certificate in IIS
Step: 5 Click OK. Once that is complete you should now see the SSL in the list of Self-Signed certificates. Now, you have IIS Self-Signed Certificate with 1 year validation.
Conclusion: Finally, by following the above step your Self-Signed Certificate is ready in the IIS.