Droid RAZR HD XT926 ROOT ERROR

hello every one .

i want to root my device for backup stock rom
Droid RAZR HD XT926 _ Verizon (unlock factory) _ 4.4.2

i using the "motofail2go" & "motochopper" methods , but cmd show this error every time :
*Daemon Started Successfully

usb debugging enable.
antivirus is disable.
driver is already installed. (plz send to me best driver for this phone)
SDK 24.3.3 installation path : C:\Program Files\Android\android-sdk
i close the "adb.exe" in task manager.
i use win 7.

but not work , still on
*Daemon Started Successfully

What is the problem?