Windows 7: Change the Default Program that opens a File Type For example if you want Adobe Pro to open instead of Adobe Reader for pdfâ€™s. There are two ways, the easiest is shown first. Easiest Way! Right mouse click on a file, hold your mouse over Open with, & click on Choose default programâ€Ś
Click on the Program & be sure the Always use the selected program to opne this kind of file is checked. Click OK.
Alternate Way! Click on the Start button
Click on Default Programs
Click on Associate a file type or protocol with a program
A list of Extensions will appear, scroll down to Select and click on Change Program
In the Open with window, select the Program & click OK.
Wait while it configures your computer and the window will appear listing your files types, click the Close button. Close the final window also.