Hello again, I finally tried to switch back as you suggested, and you were correct, of course. Without StartisBack - its fine, it stays in the Startscreen. With Startisback, regardless of the version and regardless of the Settings, it switches to the desktop after some seconds (a bit earlier if set to switch to desktop anyways). I have lots of programs including cygwin, but in the Autostart installed by me just these: AltDrag and VirtuaWin. And the issue was already before I installed those. What kinds of programs would force the switch to the desktop, do you have an idea? Thanks for you help! Cheers.