Dell's Dumb Decision
Computer giant Dell has subjected new PC owners to a monumental cock-up by supplying the computers with a poorly-configured root certificate (eDellRoot) that leaves users open to security vulnerabilities. PCs shipped since at least August have had this cert installed, and which perversely cannot simply be deleted in the usual way. They will soon be issuing instructions on how to remove the offending cert.
TheRegisterIf you've got a new Dell, you can check here to see if you the dodgy root CA cert installed. And if you can't wait for the official advice, you can try deleting the .DLL from the filesystem, and the cert from the Windows certificate manager – or use Mozilla's Firefox because that web browser has its own set of trusted certificates, and ignores the rogue eDellRoot.