Limit the initial Picasa scan
While it's not possible to disable the initial scan for photos after installing Picasa, you can use the Folder Manager to specify the folders on your computer that Picasa should scan .
- Once the initial scan begins in Picasa, click the Tools menu.
- Select Folder Manager.
- In the Folder Manager, exclude all folders that you don't want to include in Picasa.
- Once you have made your selections, click OK.