Still get a modest amout of these errors in 4.8 latest version. Had this 3 days in a row. Anybody know why???
"Information about current update:
Last encountered error: Invalid file signature. Setup will terminate.
Total time: 1:08"
Have you tried a repair of avast?
To do 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