Advertising pop-up's and advertising websites in Google Chrome

Since this month I have small advertising windows popping up in Google Chrome, especially of photos in the browser and advertising websites open in a new tab at least twice when I ckick on links or even when I want to scroll down or up.

I check al recently installed software and disabled/deleted all extensions, but nothing helps. Norton doesn't find anything on scans, not even the power eraser. Even though, Norton stops a lot of web attacks recently. I also tried other malware scaner and advertising blocker, nothing works!!!

Anyone has any idea??? Please! It also slows down Chrome. Btw, other bowsers work well (iExplorer & Opera).