[How-to] Update certificates
Import your new certificate in local computer store → SSL Certificate
Once you have imported your new certificate, you must update the IIS bindings.
Open IIS
Use Windows Search to open IIS
Open site bindings dialog
Extend the tree to the sites items
Select the site you want to update the certificate
Click on Bindings...
Edit site bindings
Select the https binding
Click on Edit...
Update the certificate
Select the certificate to use
Click on OK
Close the site bindings dialog