How to Find Duplicates in Picasa 3

1. Launch Picasa 3 on your computer. If you do not have Picasa 3, you can download and install it for free from the link provided in the 'Resources' section of this article
2. Allow Picasa 3 a few minutes to scan your hard drive for images and index them. You will know that Picasa 3 is scanning by a small, 'flag'-type notification popping in and out at the lower left corner of your monitor.
3. Click 'View' in the top menu bar and select 'Library' to view all of your images in Picasa 3. The program will display all the photos and images it indexed, including all duplicate files.
4. From the top menu bar, select 'Tools', 'Experimental' and 'Show duplicate files'.
5. Visually scan the displayed images to discover where they exist on your hard drive.