If the licensing for Encore CS6 is set incorrectly for Creative Cloud members, Encore can prompt for a serial number on launch. As a Creative Cloud subscriber, you do not have a serial number, and it's necessary to reassociate it with Adobe Premiere Pro CC licensing to prevent the prompt.
Note: Encore CS6 is installed as part of the Adobe Premiere Pro CS6 installation, and is not available for trial subscribers to Creative Cloud.
Uninstalling Adobe Premiere CS6 incorrectly (by dragging the folder or application to the trash rather than running the uninstaller) can cause this issue.
- Close Encore CS6 and Adobe Premiere Pro.
- Confirm that Adobe Premiere CS6 was uninstalled correctly by opening the Finder and going to
Mac HD/Applications/Utilities/Adobe Installers
- If the uninstaller for Adobe Premiere Pro CS6 is listed, double-click it and follow onscreen instructions to uninstall.
For instructions on installing Encore CS6, see Encore CS6 not installed with Creative Cloud.