Hi,
When I right click on a file and scan it, I get an empty window as the results. It doe not tell me if the file is OK or not. I upgraded to the last version with no success…
Thanks!
Working fine on my systems.
Perform a repair of avast and see if the problem is solved.
If not, perform a clean installation of the latest version.
You need the setting to show special scans (which the context menu scan is) AvastUI > Settings > General > Special scans - Settings.
Is the Explorer scan in the list of special scans ?
Thank you all for your great suggestions - it eventually only worked when I uninstalled and reinstalled Avast…
It is working again and that is what matters 
You’re welcome, good that it is working as it should now.