Clicked on file-open and found folder but it says folder is empty? what happened to the tracks? Windows vista/ Audacity 2.1.0
Did you move the AUP file? Moving it can cause problems. There is some information [u]here[/u].
It’s a good idea to export your audio to WAV as a “safety” or backup as well as an AUP file. Or depending on what you’re doing, you may not need to save an AUP file. (I usually skip the AUP and just make a WAV or MP3 file, etc.)