Thread moved from the Adobe Captivate forums to the Premiere Pro forums.
Vastly easier to help when "we" know what we're helping. So typically one gives some info on computer specs & specific program versions ... makes it a lot easier for us other users to make an informed suggestion.
In order to export, you have to have media selected. Say a timeline/sequence or some clips in your project panel ... the export button is grayed-out until media is selected.