You Are Out If You Can’t Meet The Requirements
Microsoft will stop trusting certificates from 20 Certificate Authorities. From January 2016, 20 CA’s will be removed from Trusted Root CA store. This is because the listed CA’s were not able to comply with the new requirements. If you are getting your certificates from the providers then users will see a security prompt when they try to visit your website. The best thing to do is get from a validated source before the programs starts removing them.
“This past spring, we began engaging with Certificate Authorities (CA) to solicit feedback and talk about upcoming changes to our Trusted Root Certificate Program. Among other things, the changes included more stringent technical and auditing requirements,” Microsoft enterprise and security group program manager Aaron Kornblum explained.
“If you use one of these certificates to sign software, when a customer attempts to install that software on a Windows operating system, Windows will display a warning that the publisher may not be trusted. In either case, the customer may choose to continue.”