In Windows 7, you can manage file associations to set which applications open specific file types. Here's a guide on how you can set the default application for picture viewing: 1. Setting Default Programs: - Click on the Start menu and open the Control Panel. - Go to "Programs" and click on "Default Programs." - Select "Set your default programs." - Choose the program you want to associate with picture files, such as Windows Photo Viewer or another image viewing application, and set it as the default program. 2. Setting Individual File Associations: - If you want to set specific file types to be opened by a particular application: - Right-click on a picture file of the type you want to associate with a different program. -...