First of all, if this doesn't belong here, I'm sorry and please put it in the right place.
I have upgraded my laptop from Windows 7 to Windows 8 since a while but I didn't had the time to ask for help. So now here's my problem.
If I watch a video with Windows Media Player, then the video only has sound, the screen is black.
If I watch a video with the Video App from Windows 8, then it also only shows a black screen. (Audio works) After a few seconds the App crashes.
Also every App that has to do something with a video (like a YouTube App) keeps crashing.
With Internet Explorer (App and Desktop) before the same. (for example : Youtube) Now it seems to work, don't know why.
The only way to watch videos is using VLC.
So that's it. What can I do to solve my problem.