Please note that updating is optional. Older computers (such as Windows Vista or XP) should stay on Adobe Digital Editions 3, as newer versions will not work consistently on these computers.
-Make sure your current Adobe Digital Editions program is closed.
-Go to the Adobe Digital Editions download page.
-Choose the correct installer for your computer (Windows or Mac). Download & install the file as you normally would if this was new software.
-As installation nears the end, the installer it will ask permission to migrate all data from the old Adobe Digital Editions version. Say yes to this! You should not need to do anything else.