Re: I'm not a Sysadmin or Security Expert
I seem to have 3 Comodo certificates. All 3 are "COMODO x Certification Authority"s, where x is either empty, "ECC" or "RSA".
I certainly wouldn't suggest deleting all of your certificates except the MS ones. Most of the certificates that you encounter online are signed by someone besides MS. I seem to have a lot more TRCAs than I remember (100-200 now) and a lot of them look particular to certain countries. (Just glancing through, I see a Greek one, a Finnish one and a couple Chinese ones.) If you're really worried about having some bad certificates, be sure to export them before deleting them. That way when you discover that you really needed one of those, you can add it back.
Biting the hand that feeds IT
