In the event of a serious problem with your Mac, you may need to reinstall your Mac operating system. There’s a simple way to do this using your Mac Recovery partition or via Mac Internet Recovery.

My friend was wiping my Mac so I could sell it and I’m pretty sure they’ve deleted the start up disk? It’s not letting me reinstall the OS on a recovery startup. She wonders about a fix. There are a ...

If your Mac is having problems, macOS has multiple keyboard combinations that you can hold to recover your system, start in safe mode, run diagnostics, and more. Here's how to use them. Apple's macOS ...

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, potentially ...

Linux commands often have long lists of options they support, many of which are single-letter mnemonics. These can be tricky to learn and remember, but their redeeming feature is their reusability: ...