To change the language of your software to english :you need to creat an empty text file and name it ” ae_force_english.txt” and drop it in the folder “Documents” of your Windows session.
Do delete your preferences and get the default statut back:start After Effect press “shift+ctrl+alt” at the same time until the soft launching window appears.( This trick goes for all Adobe softs).
To work on After Effect while launching a calculation process:launch a new After Effect session or drag and drop your *.aep document in Adobe Encoder. It will take care of compiling your work while keeping your affter After Effect session available.