Resetting a Canon Ixus and Powershot

• 1). Press and hold the "Menu" button for about five seconds.
  
  
• 2). Release the "Menu" button. This will prompt a "Reset Settings to Default" menu. Navigate and highlight the "Yes" option.
  
  
• 3). Complete the resetting by press the "OK" button on the digital camera.
  
  

Resetting a Canon 400 D Digital Camera

• 1). Press the "Menu" button then press the "Up" button until the top folder is highlighted.
  
  
• 2). Press the "Right" button until you see the last folder, which is the "Language" folder. Press "Down" until "Clear Settings" is highlighted.
  
  
• 3). Press "OK" to prompt the next menu. Scroll up and press the "OK" button to reset your Canon camera to its default factory settings.