I installed Joomla and received 2 email notifications. 1st email 'Installation of Joomla Completed' then I get a 2nd email 'Installation of Joomla Failed'. It seems that the application is installed and working but when I attempt to perform the update I get a failure message ' Archive is Corrupt' and the update window has a perpetual spinning icon.
I installed the WordPress 4.5.3 update from the Applications Manager and I received 2 email notifications - Installation of WordPress failed and Installation of WordPress 4.5.3 Completed.
I'm not sure either application is faithfully installed.