Hướng dẫn sử dụng tính năng Trusted Root Automatic Update trên Windows

From Windows XP,Bắt đầu từ Windows XP, Microsoft has provided this feature. When the Client accesses a website that uses SSL, if the operating system missing the RootCA of the certificate that the website is using, the Windows operating system will automatically connect to Microsoft server to check if RootCA’s using by website can be trusted or not. If yes, RootCA missing on the Client will be automatically downloaded and included in Trusted Root Certificate Authorities. The following video will describe this feature in more detail, as well as how to turn it on and off:

So, after delete Entrust’s RootCA, if enable the option Turn off Automatic Root Certificate Update, the operating system will no longer connect to Microsoft and report an error with the Entrust certificate. Otherwise, when disable this option, Entrust’s home page is normally accessible without any warning.