Start PSE to get to the Welcome screen.
Hold down the Ctrl + Shift keys and click Organizer. Keep holding down the keys until you see the Catalog window.
Select your catalog and click Repair. Select “repair anyway” even if PSE doesn’t find problems.
Then for good measure, click Optimize.
If repairing resolves your issue then fine else repeat the above steps, but click New to create a new catalog. If you’re able to import photos into the new catalog and the Organizer works fine, then problem can be old catalog.
Check for Task Manager and end the "ElementsAutoAnalyzer.exe" file and then try.
- Try launching Organizer directly from the exe with Admin rights.
Some more solutions once you try these are here http://forums.adobe.com/message/4994459#4994459