blogs. oracle. com/virtualization/post/install-microsoft-windows-11-on-virtualbox), then installed iTunes 12.12.7.1 on it via Microsoft Store.
I bought a DRM'ed TV show in the iTunes store and wanted to view it.
This is possible only without GuestAdditions!
As soon GuestAdditions 6.1.42 are installed, the iTunes Movie player only shows a white screen (similar to when you try to screencast/screenshot a video in iTunes).
So iTunes interpretes the GuestAdditions video driver as if screen casting would be active and displays blank screen if playing a DRM'ed video.
I installed/uninstalled/reinstalled the Guest Additions a couple of times to confirm this behaviour.
The core problem seems to be the graphics driver VBoxWddm.inf - as soon as I install this driver manually via device manager, the video player in iTunes gets blank. As soon as the standard driver (Microsoft Basic Display Adapter, basicdisplay.inf) is installed, the video shows up.
This is a pity because I cannot view my bought videos in full screen! (the standard driver without Guest Additions only has 1024x768 resolution)
Is it possible to fix the driver?