This might be a bit late, but I found I way to do this...
Close
Viber.exe
(you know, right-click on viber icon in tray and exit :) )Go to the settings folder of viber
c:\Users\<user-name>\AppData\Roaming\ViberPC\<your_number>\
note: This is the folder with the Viber Settings (there is another one ...\AppData\Local\Viber
- this is Viber's install folder
Locate the
viber.db
fileOpen it with SqLite and open the
Settings
tableChange the
DownloadFolder
in the database - like on this picture
note: For some reason, when you right-click on an image and select open in folder
, the folder doesn't show up in explorer, but you can left-click on the image (view it) and you can open the folder from your photo viewer.