#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
$hGUI = GUICreate('')
$iCB1 = GUICtrlCreateCheckbox('Option 1', 20, 20)
$iCB2 = GUICtrlCreateCheckbox('Option 2', 20, 40)
$iCB3 = GUICtrlCreateCheckbox('Option 3', 20, 60)
$iCB4 = GUICtrlCreateCheckbox('Option 4', 20, 80)
$iCB5 = GUICtrlCreateCheckbox('Option 5', 20, 100)
$iSet_Button = GUICtrlCreateButton('Select default options', 20, 200, 140, 20)
$iUnSet_Button = GUICtrlCreateButton('UnSelect default options', 180, 200, 140, 20)
GUISetState()
While 1
Switch GUIGetMsg()
Case $GUI_EVENT_CLOSE
Exit
Case $iSet_Button
GUICtrlSetState($iCB1, $GUI_CHECKED)
GUICtrlSetState($iCB3, $GUI_CHECKED)
GUICtrlSetState($iCB5, $GUI_CHECKED)
Case $iUnSet_Button
GUICtrlSetState($iCB1, $GUI_UNCHECKED)
GUICtrlSetState($iCB3, $GUI_UNCHECKED)
GUICtrlSetState($iCB5, $GUI_UNCHECKED)
EndSwitch
WEnd