The Desktop key contains entries that control the appearance of the screen background and the position of windows and icons on the screen. The following shows the Registry path:
HKEY_CURRENT_USER\Control Panel\Desktop
To change most of these entries, use the Desktop icon in Control Panel. The Desktop subkey can contain the following entries:
BorderWidth REG_SZ number
Sets the width of the borders around all the windows that have sizable borders. Affects how fast windows are painted.The possible range is 1 (narrowest) to 49 (widest).
Default: 3
CoolSwitch REG_SZ Boolean
Turns fast task switching on or off. To change this entry, choose the Desktop icon from Control Panel, and check or clear the Fast ALT+TAB Switching option in the Task List dialog box.
Default: 1
CursorBlinkRate REG_SZ milliseconds
Indicates how much time elapses between each blink of the selection cursor.
Default: 530
ScreenSaveActive REG_SZ Boolean
Specifies whether a screen saver should be displayed if the system is not actively being used. Using a screen saver may slightly slow the speed of background jobs while the screen saver is displayed. Set this value to 1 to use a screen saver; 0 turns off the screen saver.
Default: 0
ScreenSaveTimeOut REG_SZ seconds
Specifies the amount of time that the system must be idle before the screen saver appears.
Default: 900
TileWallpaper REG_SZ Boolean
Specifies that the desktop wallpaper is tiled across the screen if this value is 1, or centered if this value is 0. Tiled wallpaper paints more rapidly and uses less memory.
Default: 0