Why does After Effects not export with audio? I have made a simple four second long video in After Effects and exported it only to find that it had no audio. I tried changing the file type to .MOV and re-rendered it but  now the file had audio but no video. I have thoroughly researched the problem but nothing worked. here are some pictures:




Any help is appreciated!
The issue seems with your playback of the rendered file. Try playing it with QuickTime (you are exporting with QuickTime after all) or VLC Media Player or Media Player Classic. All these are good options if you want to test you rendered files.

Using the media player that comes with your version of Windows is always a bad idea, Microsoft never bothered with good codec support.