December updates cause notification icons to disappear on restart

After the updates install, the notification icons
with the exception of Networking disappear on
Shut-down Start or Restart.
I have to run System Restore to get them to
reappear. It can be a restore point that isn;t
able to restore or anything. I just tried a restore
point after the update. That works, also.
Start the computer, then system restore.
This last time MKdetect had to be closed due
to a memory error.