Protect - Nikon CoolPix S3300 Reference Manual

The Playback Menu
d Protect
Press the c button (playback mode) M d button M d Protect
Protect selected images from accidental deletion.
Select images to protect or cancel protection for previously protected images
from the image selection screen. See "Selecting Images" (E42).
Note that formatting the camera's internal memory or the memory card will
permanently delete protected files (E60).
Protected images are recognized by the s icon (A7) in playback mode.
E41