Protect - Nikon CoolPix S6300 Reference Manual

The Playback Menu
d Protect
Press the c button (playback mode) M d button M d Protect
Protects selected images from accidental deletion.
Select images to protect or cancel protection for previously protected images
from the image selection screen. See "The Image Selection Screen" (E55) for
more information.
Note that formatting the camera's internal memory or the memory card will
permanently delete protected files (E77).
Protected images are indicated by the s icon during playback (A8).
E54