Hi! In this fully working CHKDSK GUI, i'm trying to use D: as the default drive instead of C: . Any ideia how can i accomplish this? CODEAutoItSetOption("TrayIconHide", 1) #include <GUIConstants.au3> #include <Array.au3> Opt("GUIOnEventMode", 1) Dim $drivearray[100] GuiCreate("CHKDSK 1.0", 330, 235) GUISetIcon("CHKDSK.ICO", 0) GUISetOnEvent($GUI_EVENT_CLOSE, "SpecialEvents") GUICtrlCreateGroup ("Check Disk ", 10, 10, 310, 90) $ReadOnly = GUICtrlCreateRadio ("R