Question: how to download pictures from viber on pc?
Answer: Open computer > Windows drive (generally it's C:) > Users.
Now enter into your current user name folder.
Click in the addressbar and type “\AppData” after your yousername & press enter.
Enter into Roaming > ViberPC. ... 
Enter to the “Avatar” folder inside that folder. ... 
Select all and copy to a folder you wish.