Things You'll Need
Instructions
Go to your Start Menu, click "Pictures," go the appropriate folder and click the photo you wish to edit to view the image in the Windows Photo Viewer.
Click "Open" and scroll down to Windows Live Photo Gallery to open the photo in the editing program.
Click "Fix" to open the editing menu.
Click "Auto Adjust" to automatically brighten the photo. Sometimes this results in an image that remains too dark. In cases where you are not satisfied with Auto Adjust's edit, click "Adjust Exposure" and play with "Brightness," "Contrast," "Shadows" and "Highlights" until you are satisfied with the results.