I had this problem few days back. My WMP and WMC suddenly stop working. I was not able to open it. My sound drivers were working fine. Then I found this solution, this might help you too, if you have same issue. To resolve this: 1. Open cmd.exe is Admin mode. 2. type "regsvr32.exe jscript.dll". 3. type "regsvr32.exe vbscript.dll". 4. exit. Try now. I should work :)