Exact same error but on version 5.0.377 with ST: 0xF....E instead.
I noticed that my windows update was reporting avast! to be outdated, I checked and my avast! program screen showed that it was indeed outdated, but when I click the update button it just claims that avast! is updated. I went to the site and got the manual update installation file and when it unpacks it shows the error.
