Why I can't use my windows media player? Whenever I try to open a song with this program, it never works and always show a window like "this validate your copy of window". So please tell me the solution.
Are you using pirated software? If you are, then inform me. If no,t try re-installing Media Player.
The message you receive is related to Windows activation. If you didn't activated your copy of Windows, you will not be able to run the application properly. Although the installation is just fine, you need to activate Windows before you can use the application. Follow this information on how to activate Windows XP or Windows 7 and above.