Screen keeps turning black while playing

[Rya.Reisender]

In case you wonder, I could not resolve this problem myself. It COULD be my anti-virus program, but that's integrated into the OS, so it can't just be switched off, so I just installed the game on an older computer (Windows Vista instead of Windows 8) which didn't have an anti-virus program at all and there the game worked (though I had to play with low quality graphic settings).