Since I upgraded to Win10 same happened to me. Quite annoying, since I lost one of my favourite sounds. I did disable the flag but now a) I don't have any chrome related notifications b) no sound from hangouts either.
Hi Your shared photos will be added to a your Google Album Archive. You can delete them from that. Photos sent when the Hangout history is turned off will be temporarily visible in the shared album. After a short time, they'll be deleted from the album. Photos saved on another persons device
