I installed Kali Linux dual boot with Windows 7, everything installed fine but when I re-booted I get the Grub rescue command prompt. The only way I dont get it is if I insert the Kali Linux USB that I installed Kali Linux from and when the usb is plugged in then I get the grub menu that lets me choose Kali Linux, Kali Linux recovery, or Windows 7. Can somebody please help me with this problem because I dont want to keep putting the usb flash drive in order to get the boot loader to choose which O/S I want to use.