I've made it a habit to back up my two enterprise root CAs every 6 months, as well as renew their certificates (they have--or had--a 1-year exipry, which I have now changed). For some mysterious reason--maybe I saw something shiny--i did manage to back up one of these CAs but did NOT renew the certificate.
So, what do I do? I cannot renew the CA's cert because the CA's cert is expired.
Much thanks!