I can’t update for some reason, Avast 6.0.1000 free version, I click on update
AV engine and defs and it is hanging up in initializing.
(restart of computer fixed the issue)
Try a repair of avast. Add Remove programs, select ‘avast! Anti-Virus,’ click the Change/Remove button and scroll down to Repair, click next and follow. You may need to reboot after the repair.