AHT is not starting; Error Cannot Load "EFI//Drivers/TestSupport.efi"
I'm trying to run Apple Hardware Test on my iMac ( 2012) by pressing D right after turning on the Mac, but i only get the error message on black screen: Error: 0x800000etc, Cannot Load "EFI/Drivers/TestSupport.efi".
I tried the same thing pressing "Option + D" and I get the same error message on black screen: Error: 0x800000etc, Cannot Load "EFI/Drivers/TestSupport.efi"
I don't have the OS X on Disk to install, as i have with no internals CD Slot.