I'm still on El Capitan. Should I update? Also is there anyway to do a clean install and then bring my mail and bookmarks and so forth into the clean install. I used to do this every update. But with El Capitan I couldn't find any info on how to do this. My iMac crashes far too often and a weird crash at that. It freezes and then reboots usually with no indication that a kernel panic has taken place, nor a report to Apple. though it will be in the system log.
Mac Pro, macbook pro, Imacs (i7); Canon 5D Mark III/70D, Panasonic AG-HPX170/AG-HPX250P, Canon HV40, Sony Z7U/VX2000/PD170; FCP 6 certified; FCP X write professionally for a variety of media; teach video production in L.A.