defraine

Hi, First post :-) We have SCCM 2012 installed, we inherited it. All the certificates expired recently and I think I have renewed most but I can't build a VM anymore. It "Failed to Run Task Sequence" (0x80004005) The logs look like certificate problem somewhere? Log shows: "In SSL, but with no client cert." (I've check the bios time, its not that). When I look at the Certificates section the Boot Media ones are still as expired. How do I refresh those please? I have Updated Distribution Points Any help much appreciated. Cheers, Sean