I have unsuccessful update. I had 10.11.4 installed with clover installation. The strange thing is that when I install the combo update, it will ask me to restart to continue the installation but the restart will reboot the whole machine unlike normally it would restart to continue installation. I have downloaded the combo update for 4 times already and I don't believe this is because of the corrupted image. Please kindly help me and I don't know how to trouble shoot. My Rt Variables is "0x003".