Remove Dust & Scratches
Remove small white lines and specks to make damaged photos look new.

Do it for me 1. Select the Rectangular Marquee tool .
2. Click and drag a box around the area of your image that contains dust or scratches.
Do it for me 3. Choose Filter > Noise > Dust & Scratches.
4. Select Preview to see the difference between the adjusted image and the original.
5. Move both the Radius and Threshold sliders all the way to the left. Then, move the Radius slider to the right only to the point where the defect disappears. Next, move the Threshold slider all the way to the right, and drag it back to the left only until the defect disappears.
6. When you are satisfied with the result, click OK.