Run WMP 12, click tools → options, switch to the "Performance" tab in the pop-up dialog box, and cancel the "DirectX Video acceleration for WMV files enabled by default" of the program, as shown below:
Image above: Remove DirectX Video acceleration feature in WMP option computer knowledge
After the modification is complete, save the settings and exit.
With the hardware update and development, some of the previous functions in the Windows XP system can play a function, in the WINDOWS7 system, the functionality has been gradually lost. Users in the actual use of the process, can be based on the actual situation to choose and save system resources.