I have two Inspiron laptops that are out of warranty.  I have just read an article in ZDNET concerning the Microsoft Secure Boot certificates from 2011 to expire in June 2026.  (https://www.zdnet.com/article/secure-boot-certificate-updates-2026/?utm_source=iterable&utm_medium=email&utm_campaign=techtoday)

Running the command to check if the new certificate has already been installed, both laptops returned 'false'.  What do I need to do to get the updated certificates?