when I turn off wmp, I try to open video file on other player, just show look like picture above. Then, when I turn on wmp, I try to open video file on other player, nothing change, still show the picture. When I try to open with wmp,wmp being force close.
I cant play any game on desktop too..
The OP has not explicitly expressed any interest in using Windows 10 Technical Preview. Instead he has a problem with Media Player Classic NOT Windows Media Player. Also from the screenshot he posted
it is crystal clear the problem lies with DX9 so it is next to impossible that he is using Win10. Next things is, at the end, you are asking him if the information you provided is helpful. How difficult is it for you to understand that any information that
is irrelevant to the posted issue, cannot and will not be, no mater how hard you try, "helpful". One last thing: Why is it that in this forum, MOST "microsoft" (MVPs, etc) people are either clueless, or totally useless in what they are supposedly trying to
do. And btw, is Microsoft, monitoring this forum and especially what some people, who claim to be associated with Microsoft, are actually writing. Some stuff is pretty laughable but also very dangerous also. Well, just wondering ...