Why wont my Macbook Pro upgrade to El Capitan?
Mackbook Pro15 inch
MAC OS X 10.6.3
Processor 2.66 GHz Intel
Memory 4GB 1067 MHz
I wiped my Mac pro and Restored to factory setting when I bought my new one and transferred the files too.
Works just fine except for bad battery but I keep it plugged in.
Every time I try to upgrade to the new MAC OS(El Capitan v10.11.2) it will start the download normally, then states "updates downloaded successfully"
Prompting the tab "to install you must Restart" so I click Restart
It starts shutting down but befor it blacks out the blue screen flickers and the image below pops up.
(you can see my cursor and I can move it around but nothing else happens)
Even when I leave it it just stays like that, luckily if I hold the Power but I can force a restart and it goes back to my MAC OS X 10.6.3 like nothing happened.
I would like to update but I don't understand why I cant.
iMac (27-inch, Late 2013), OS X Yosemite (10.10.5)