avast functionality

Recently, I’ve been having an issue when I try to run a scan. It does the scan 99% and then says it had to close down. No further explanation. Anyone know what I’m running into?

Reinstall Avast.


Or, try a repair of avast :

Control panel > Add/remove programs > click once on avast to select it > click on Change/Remove > scroll down the left pane and click on repair > click OK> follow directions