How can I get DST Root CA X3 removed from the trusted certificate list. It has expired

Hello Nosflonur,

Welcome to the Apple Support Communities. From your post, you want to remove a trusted certificate from the list. We'll explain.

Trusted certificates are applied/updated with each software update. They also can changed in Keychain Access the amount of trust levels or in configuration profiles:

• Lists of available trusted root certificates in macOS
• Use configuration profiles to standardize settings on Mac computers
• Change the trust settings of a certificate in Keychain Access on Mac

Thanks and have a great day.