Julia, I really appreciate your help and that you wanted to do a test at your computer, so we could compare, but I think I found the reason. I really had all programs shut down, but one of those programs still worked in the background and I had to look for "Dienste" (tasks) in my start menue to find it. Luckily I could shut it down and the download went down from about 33kB/s to 0B/s or 208B/s. That's a lot more what I expect when everything is shut down and no program should download anything. And guess what? You were right with your assumption as well, Julia! It was the radio program. I never knew that it still worked even when I stopped it working (it was usually placed at the right side of the taskbar). So, thanks a lot to you as well, Julia! But in case you like to check nevertheless, I can recommend NetSpeedMonitor or NetWorx or the Gadget Network Meter, which was the one that I could use the best while shutting down one program after another and one task after another. Julia, if you want to use these programs, I'll be cool, if you tell me what your download rate says - just to compare or to figure out that 208B/s is still too much. (Just in case anyone starts thinking that this was all my idea. WhiteHorse gave me the hint of shutting down tasks. So, sorry, I'm not that smart. ) I'll add you three later on this week. Just not having the time to start my laptop, but I will later on this week.