To edit the computer registry, first you should log onto your computer with administrative rights.
Click Start button and type regedit in Run option then press Enter for next.

Navigate to HKEY_CLASSES_ROOT\Applications\Program name.exe
Here are the executable file names for others commonly used programs:
For MS Word = windword.exe
For MS Excel = excel.exe
For Explorer = iexplorer.exe
For Notepad = notepad.exe
For Media Player = wmplayer.exe



In this case, we are trying to control windows media player is never showing on the most frequent used program list when we play any movie
Now in right side panel, click right to create a new String value with the name NoStartPage and close registry editor.
But next time, if you want to disable this functionality then simply delete the NoStartPage string item.
Now close the registry editor and restart your computer after any changes to go into effect