Need to use macOS Recovery mode? We look at the key combinations you need to start an Intel or M1 Mac in Recovery mode and what to do once there.

However, if you have normal Recovery installed and it refuses to install macOS for some reason, you can manually invoke Internet Recovery.

As of macOS 10.12.4, released on Monday, a new keystroke combination at launch will allow Macs to netboot, and download the latest OS compatible with a computer when performing a recovery ...

How to make your own bootable macOS 10.12 Sierra USB install drive You'll need a Mac, an 8GB USB drive or SD card, and a little patience.