How to Change Color Depth (5 Steps)

Right-click on the open portion of the Windows XP desktop, choosing 'Properties.' Next, select the 'Settings' tab item. A drop-down menu will appear listing your choices for 'Color Quality.'
Changing the screen resolution within the 'Settings' area will affect the range of choices available within the 'Color Quality' drop-down. Depending on how much graphic memory is available, the range of color-depth possibilities could shrink. Reducing screen resolution does the opposite.
Vista users should click on the 'Start' button. Click on 'Control Panel.' Click 'Appearance and Personalization.' Choose 'Personalization' and select 'Display Settings.' Pick the 'Colors' drop-down menu, selecting the highest available color-depth (often 32-bit).
Mac OSX users should select the 'System Preferences' item under the Apple menu. Pick the 'Displays' icon. Choose a preferred screen resolution under the 'Resolutions' area, then select the number of colors to display under the 'Colors' item.
CRT display users should proceed as was explained for LCD users.
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How to Get a MacBook to Display the Full Screen

Click the Apple logo in the upper-left corner.
Click 'System Preferences.'
Click 'Displays.'
Click the resolution that represents the full screen resolution of the MacBook display, which is at the bottom of the list. The most common setting is 1280x800. Refer to the owner's manual for any details specific to your particular model.
Close the System Preferences utility.
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