You can leave this form empty and continue on. You will be prompted with a registration screen.

You should see a progress bar showing you that files are now downloading.Įventually, this install should complete and your Macintosh Pro will restart. In the “MAC OS X Lion” screen you want to choose the “Macintosh HD” or whatever you named your erased drive to. Click on that menu item to begin installing Lion or MACos 10.7. Now you want to look for “Reinstall MACos” or something similar in MAC OS X Utilities screen. If the journal tab is green you can go ahead and click on that to format or journal this drive. You will get prompted to format or journal this drive when you go to install the Macintosh operating system. Now you may need to “Journal” this file system which is another word for format. This process should only take a few seconds. You will be prompted to click “Erase” or cancel. Click on an “Erase” tab, then click on “Erase” again. Many times this hard drive is labeled “Macintosh HD”. Once in disk utility highlight and select the hard drive to install to. Eventually, after downloading some files you will see a MAC OS X Utilities screen. You can even connect to a WiFi Internet connection.

You must have an Internet connection to perform a Macintosh operating system installation this way. You want to hold down both these keys after your Macintosh powers on and you hear Apple’s proverbial chime. I choose to use the command plus R keystrokes. First thing you want to do is boot into Apple’s recover menu. I decided to perform a MAC Lion Upgrade to High Sierra, after backing up their important data of course. One of my computer repair customers brought in a MACBook Pro model A1278 2011 with a non functioning operating system.

Apple macbook pro 2011 high sierra