VS 2012 stops debugging right after start

I have got Windows 8 a few days ago and now there is a strange behavior: (Asp.net Application using local IIS and IE as Testbrowser) When i start the application with debugging, VS starts the build as it should be. The build completes without any errors and VS is switching to the "debug mode" (changing toolsbars, Windows, ...).

But right after the browser (IE) pops up, it gets closed again and the debugging stops. After a few tries (2-4) suddenly everything works normal.

Is there someone who can give me a hint what the problem can be? Or, even better, knows how to solve it? =)

UPDATE: I'm using IE11

UPDATE: I have found a message in the "Output" window "The program '[9688] iexplore.exe' has exited with code -1073741790 (0xc0000022)." Google does not show me any usefull hint... is here someone knowing this errorcode?