Open ES File Explorer, expand the Local menu on the left, and look for 
Device /
click that entry, then look for the 
SYSTEM 
folder and open it. Almost done now, look for a 
PREINSTALL 
folder and click it. Now look for an entry with 
SPMC or XBMC 
in the title. Click it, confirm you want to install it, and you should be done (bar re-running the Wizard). If not, let us know here, or via the live chat system - bottom of 
https://DroidBOX.co.uk during office hours, or e-mail us ( 
https://droidboxforums.com/threads/what-to-include-if-you-need-to-e-mail-us.364/ ).