Finally, I move from creator NXT 4 to NXT 8.
Previously with NXT4. My iso image file is associated with NXT4 (ie double click the image file and I get directly into "Burn Disc Image".
However, After installing NXT 8 (I uninstall old NXT4), it seem iso image file is no longer associated to NXT but image burn (which I believe is Win10 default).
How could I change it to default using Creator NXT 8?