I have already installed the After Effects 11.0.4 update, but it still gets stuck at "initialising media core".
Either it doesn't open at all or when it opens and I drag a video file into the preview it stops working.
We are going to need a lot more info to help you.
Start with this:
fixing permissions problem that impedes start of Adobe applications
Sorry new adobe ID, but After Effects is working now. I uninstalled and reinstalled AE then installed the updates one at a time, starting at 11.0.1 to 11.0.4
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