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.

Lastly, if your Mac supports Internet Recovery, then you can use this by holding Option-Command-R at startup instead of just Command-R. This will load the same recovery tools from Apple's servers that ...

Need to reboot you Mac to access a new startup disc or launch with safe mode enabled so you can troubleshoot problems with OS X? Then read on for this handy list of startup options for Mac OS X ...

If you have a Bluetooth keyboard, OS X may ignore keystrokes at startup for booting into Safe mode and other optional boot environments. Topher, an avid Mac user for the past 15 years, has been 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 ...