Hello,  I am able to open device manager but i am not able to select Device manager tree. i used {TAB} for selecting tree but it is not working Please let me know anything i am missing . Run( @comspec & " /c start devmgmt.msc","", @SW_HIDE) WinWait("Device Manager") WinActivate("Device Manager") Send("{TAB 2}") Send("+") Thanks and Regards, Vikram