MacBook Air A1370 hard drive wiped by user
I have been asked to help reload MAC OS on a MacBook Air A1370. The user wants to pass it on to his son, but he wiped the hard drive.
I can use COMMAND + Power On to get to the screen with the picture of a hard drive and place to enter password for a WiFi. I can get connected to the WiFi, but then what. If I click on the arrow or the hard drive picture, it just goes to a screen with a crossed out circle. Intermittently it blinks.
Thanks for your help.
MacBook Air 11″, macOS 10.12