Upgrade procedure ☆ VERY IMPORTANT ☆
(1) Check and memo the version number of current software.
(2) Uninstall current version.
(3) If the uninstalled version was:
a) v1.39 or earlier- > move on to step (4 )
b) v1.40 or higher- > go to step (5)
(4) Install v1.40 and uninstall it immediately.
(5) Download v1.43 and run setup file
