Windows7 sets the default program graphic tutorial (using a program to open a file type)

1, select “default program” in the “Start” menu. 2. Select “ associate the file type or protocol with the program”. 3, modify *.mp3 as an example to modify the method: first select the item to be modified “.mp3”, the top shows the current default file open this file type. 4. Click on the top right “change program” button. 5. Select the appropriate program in the program list. If you do not find the required program, you can click “Browse” to make a manual determination. After all the modifications are completed, click "OK" to end.