how can i restore my alienware to its factory setting

i have alienware m14x r2 and i restored it to its factory setting using these steps
press f8
select repair your computer
select alienware respaw restore and emergency backup
select other system back up and more options
select restore my computer
select restore without preserving new or changed file

so it was restored perfectly and everything was working but then after a very short time after restoring my laptop stopped recognizing external hard disks.when i plug hard disks it says cant install driver.so now i want to restore it back to the factory setting again. but this time when i select repair my pc it will just go back to windows.it doesnt go to system recovery? how can i solve this?