Smart scan settings bug

Avast Free Antivirus / Premium Security
1

Avast UI → Settings → General → Smart scan

There are 4 options:

  1. Scan for viruses
  2. Scan for outdated software
  3. Scan for network threats
  4. GrimeFighter

When I turn on only sortware updater (2) and then run “Scan → Smart scan”, nothing happens.
Same with all options turn off.
You need start scan several times to see this effect.

To understand what I mean, try it yourself.

2

Works just fine for me…all of the different scans do.

3

Tested this on:
Windows XP SP3, Avast IS / Avast Free
Windows 8.1 x64, Avast Premium / Avast Free

When I turn on software updater only, scan not start at all or always 0%.
When I turn another option with software updater, all OK.