I did, now avast doesn't work--"stopped or in an inconsistent state". The problem, I suspect is in the attached image. I'll reboot, then try uninstalling and going back to the earlier version.
Update: Didn't work. I uninstalled with the removal tool and went back to v.5.0.418. Everything works now but I had to re-register. Apparently, they have no record my previous registration. Oh well, a month longer before I have to renew my registration

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