New
#11
Well, that apps came with the notebook, and it wasn't problematic before. Unfortunately I don't have any previous restore points. But the problem is kind of solved- as it don't display that option in the personalize menu, it still changes the wallpaper. The only inconvenience is that I have to use the regedit to change the interval, but then again it's not something I need everyday.
Computer is clean, recent scan from various programs didn't show anything. Maybe I try to do something with this Power4Gear app. Anyway, I appreciate all the help you provided. Thanks!
One more thing... I've just found out that what I marked as (2) on screenshots was just an info, not a link to settings... I've completely forgotten about it.