Canon POWERSHOT SX40HS User Manual page 23

Before you use a new memory card or one that has been formatted in other
devices, you should format the card with this camera.
Formatting (initializing) a memory card erases a_ data on the memory card.
As you cannot retrieve the erased data, exercise adequate caution before
formatting the memory card.
Before formatting an Eye-Fi card (p. 184), be sure to install the software
contained on the card to a computer.
Display the menu.
Press the
MENU
button.
Choose [Format].
Move the zoom lever to choose the _1' tab.
Press the Av buttons or turn the _, dial
to choose [Format], then press the @
button.
choose[OK].
Press the _ )' buttons or turn the iiiill _: dial to
choose [OK], then press the @ button.
Format the memory card.
Press the ,_v buttons or turn the @ dial
to choose [OK], then press the @ button
to start formatting.
When formatting ends, [Memory card
formatting complete] appears on the
screen. Press the @ button.
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