Nikon 5700 - Manual (Page 147)

Menu Guide—Using the SET
-UP Menu
135
Formatting Memory Cards: CF Card Format
Use this menu to format the memory card. Formatting
permanently deletes all data on the memory card.
While formatting is in progress, the message shown
will be displayed.
Format
Press multi selector to right to start formatting. Formatting
begins immediately. Formatting can not be reversed. All images
on the card will be permanently deleted.
No Exit without formatting card.
Setting Description
During Formatting
Do not remove the memory card, remove the battery, or unplug the AC
adapter (available separately) while formatting is in progress. Doing so
may damage the card and render it incapable of recording pictures.
Formatting Deletes Data
Formatting permanently deletes all data on the memory card. Before format-
ting, be sure to transfer to a computer any images you would like to keep.