- How to run disk utility mac startup how to#
- How to run disk utility mac startup full#
- How to run disk utility mac startup pro#
- How to run disk utility mac startup verification#
- How to run disk utility mac startup password#
This is an easy way to select a startup disk before your Mac turns on. Your Mac will boot from the startup disk you selected.
How to run disk utility mac startup how to#
Here’s how to change your Mac’s startup disk:Ĭonnect the drive you want to use as a startup disk to your computer.įrom the Apple menu, select System Preferences. Changing Your Mac’s Startup Disk with System Preferences Normally, the startup disk is set as the hard disk inside of your Mac, but you can use an external hard drive, USB thumb drive, or DVD as your startup disk. When your Mac turns on, it loads the operating system on the designated startup disk, a hard disk or partition containing the macOS operating system. With No Security, other operating systems can be installed.AirPort Apple Apps Backups Developer Education Email Hardware Internet iPad iPhone Mac Music Network Photos Security TV Weekend Wonk Medium Security still validates that a legitimate version of macOS (or Windows) is installed, but doesn’t check macOS for signs of modification. (This mode also allows Windows via Boot Camp.) If that can’t be validated, it will offer to reinstall macOS (but not erase your data) or startup from a different drive, depending on your other settings. Check out a detailed guide on how to free up storage space on Mac.
How to run disk utility mac startup full#
It also validates effectively that the installed version of macOS hasn’t been tampered with. When you see the startup disk full message on your Mac’s screen, it’s time to remove some clutter.
How to run disk utility mac startup verification#
In Full Security mode, Secure Boot uses cryptographic verification through digital certificates and signatures to allow only the currently installed version of macOS or a version that Apple marks as currently supported. However, that concern aside, it’s also a significant security enhancement in an era when we’ve seen exactly how insidious criminal and government-issued malware can be. The third option, Secure Boot, is the kind of feature that raises the hackles of long-time Mac users, as it can feed the concern that Apple will eventually make Macs as locked-down as iOS in terms of what versions of macOS can run and which apps could thus run on your Mac. (The iMac’s internal drive is now deeply integrated with the T2 chip, making it useless if removed without the chip, and the chip can’t be removed.) Security minded people might prefer this option, as it prevents a malicious party from booting your Mac to try to access, copy, or decrypt material on your internal drive.
How to run disk utility mac startup pro#
You can limit whether or not to let your iMac Pro start up from externally connected drives of any kind.
How to run disk utility mac startup password#
It prevents someone without your firmware password from starting up from a disk other than the currently designated startup volume.Įxternal Boot. This already exists as Utilities > Firmware Password Utility on other Macs. Two of the three options are quick to explain:įirmware Password Protection. (Jason Snell details the T2’s functions in a recent column.) (The third is available on all Macs.) This comes through the addition of a separate chip, the T2, which performs a number of component management and security tasks. On the iMac Pro, you can select Utilities > Startup Security Utility.Īpple has put two special options here that allow you to enhance the physical integrity of your Mac in a way that others Macs lack. A window appears on all Macs with a set of options for programs to run or actions to take with additional options in the Utilities menu. To launch macOS Recovery, you restart (or startup) your Mac, and hold down Command-R. It’s been a huge help since it was added way back in Lion, and it’s become more advanced and reliable over time. It’s available only through macOS Recovery, Apple’s current name for the mini-operating system on a separate partition on your startup macOS volume that you can start up from in order to fix problem on your main partition. If you’re a new owner, here’s how the new Startup Security Utility works at providing enhanced protection against people who might gain physical access to your computer.
With the appearance of the fancy new iMac Pro, Apple has also added some new startup options available exclusively on this model.
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