How do I wipe my MacBook air clean?
How do I wipe my MacBook air clean?
Factory reset You need to put your MacBook ($639 at Amazon) into recovery mode in order to erase all of your data and reinstall MacOS. To enter recovery mode, restart your Mac and immediately press and hold Command-R. You can release the keys when you see the Apple logo. Next, you’ll see the MacOS Utilities window.
Why is my Mac starting Internet recovery?
Your Mac may have successfully created the Recovery HD partition but Recovery Mode may not be able to access it. This might be due to damage to the drive or a more serious error in your system. If your computer is unable to access normal Recovery Mode, it will automatically begin Internet Recovery.
Why is my Internet Recovery Slow Mac?
macOS Recovery. requires a broadband high speed connection. If it’s less than 10mbps, you may have a difficult time using macOS Recovery. Newer Mac computers and some older Mac computers automatically try to start up from macOS Recovery over the Internet when unable to start up from the built-in recovery system.
How do I start my Mac in Disk Utility?
To access the Disk Utility on a modern Mac—regardless of whether it even has an operating system installed—reboot or boot up the Mac and hold Command+R as it boots. It’ll boot into Recovery Mode, and you can click Disk Utility to open it up.
How do I safe boot my Mac?
Start up your Mac in safe mode
- On your Mac, choose Apple menu > Shut Down. After your Mac shuts down, wait 10 seconds.
- Restart your Mac, then immediately press and hold the Shift key.
- Release the Shift key when you see the login window.
How do I get into the BIOS on a MacBook Pro?
To access your MacBook’s Open Firmware, you must first shut off your computer. Then turn it back on, holding down the “Command,” “Option,” “0” and “F” keys simultaneously as the machine boots to access the Open Firmware interface.
Is there a BIOS for Mac?
There is no BIOS on a Mac. It uses EFI, which can be configured from within OS X e.g. using bless from the command line. You are able to boot from external USB drives that satisfy some requirements.
Does my Mac support UEFI?
Mac computers do not have a BIOS. When Macs moved to the Intel platform, they elected to use Intel’s Extensible Firmware Interface (and later the Unified Extensible Firmware Interface). Press the option key a boot to select the boot disk, that’s UEFI. Press command-R to enter system recovery mode, that’s UEFI.
Is UEFI faster than BIOS?
UEFI can run in 32-bit or 64-bit mode and has more addressable address space than BIOS, which means your boot process is faster. UEFI is essentially a tiny operating system that runs on top of the PC’s firmware, and it can do a lot more than a BIOS.