Play video and audio files, create and manage a library containing your songs and music collection...
— How do I remove the annoying green video screen from explorer?
The green screen appears when you lack codecs that are needed to decode the audio and video stream. To get rid of that green screen and see the actual video and hear the audio..., install a set of codecs.
For example, you can try Combined Community Codec Pack. It contains all the filters and codecs to decode most of the known audio and video file formats, then Windows Media Player will render your files correctly. Read more