The exact location of the certs will depend on whether your system is running on Windows or a Linux variant. This post can suggest some places to look - SSL Certificate Files Location
When hosting on an IIS server, the default Web Scripting is ASP.NET; however, my WordPress sites still run fine with this setting, even with CGI unchecked, as it is by default. My question is: Should I set hosting to CGI (and untick ASP.NET) for WordPress hosting or not?