Problems after 20.2.0.19 update

Hi, My machine bluescreened when running liveupdate to get the new version and since it installed on reboot it has BSOD'ed twice more.

 

Not sure what causes it to happen as my machine has been unattended during the last 2 BSODs but the error appears the same on the screen.  SYMEFA.SYS is labelled as the culprit.  If I could upload the MiniDumps I would, but this is what they contain....

  

BSOD View.jpg

 

AutoSupport tells me nothing is wrong...

 

Help...!