Forum Post: my exe default has changed however do i move it back

Then select the program that you want the file delay to open with. If you want it to open thereupon program all the time, then make sure "Always use the selected system to begin this rather file" is checked.

Source: http://en.open.dell.com/support-forums/laptop/f/3518/p/19433016/20036977.aspx#20036977