In addition, you can also use CMD or the Windows built-in feature - Windows To Go to make a bootable USB hard drive. 6. First, you have to have an Intel-Based Mac. 3. When the startup music is playing press and hold the “C” key from the keyboard. Now, select the drive you want to use with your mouse. You should open Disk Utility and ask permission to repair disk. I let it finish, the machine rebooted to the external drive, and it ran wonderfully! Select Install macOS (or Install OS X) from the Utilities window, then click Continue and follow the onscreen instructions. Here is a guide on how to create a bootable external Mac hard drive to run macOS from an external hard drive. Booting from an external hard drive on Mac also has a set of instructions. I will always keep a Mojave boot drive on an external SSD during the lifetime of my ownership of this Mac mini 2018. Ok I have a Power Mac G5. It seems that something is preventing it from working with USB-C drives on a technical level, but Thunderbolt 3 drives work fine. Tenorshare 4MeKey: Remove iCloud activation lock without password/Apple ID. Also, you cannot boot from just any external hard drive. Step 1: Insert the external hard drive into your computer. Yay! You can easily store a bootable external Thunderbolt 3 drive on the flat top of an M1 Mac mini. There are two ways to actually install macOS Big Sur to the external drive. Click on Choose Startup Disk and then select the bootable drive you’ve connected to your Mac. As well as needing to be sufficient in capacity for your needs and fast, it also has to be compatible with the process itself, so you will need to use a drive that connects over Thunderbolt 3. Start up system preferences. To create the external bootable drive, you will need a few things to get going. So, it is not too complicated to Mac boot from CD/DVD. Maybe you want to troubleshoot some problems, repair the disk, do partitions, format the entire disk, update, and install OS X etc. Part 2: Common Problems and Fixes When Boot Mac from … If the main macOS installation fails, using an externally-bootable drive will allow a user to quickly get their Mac up and running without touching the internal storage, which can help with file retrieval and backing up before data is lost in a format. You will have to complete the initial Mac setup process, but once that is complete and the desktop is accessible, you can shut down the Mac and disconnect the drive safely. This way you can boot your Mac with an external USB drive, but the most critical part is to prepare the USB drive. Only boot from the built-in SSD or network system recovery. The second method, which follows, has users downloading the operating system and installing it as part of the process itself. In a non emergency controlled situation when your Mac is able to be booted normally from its internal drive you can select to boot from the external drive. Part 1. Reply. It may fix the problem. Turn the Mac back on with a long press of the power button, … Directly powering the external helps ensure a stable drive that is ready to … This site uses cookies. All rights reserved. You could also reinstall macOS to the internal drive instead of the external drive using the second method by selecting the internal drive, a method we have covered previously. Go for it! If you have multiple USB drives connected, then the Startup Manager shall list the drives with the bootable OS. By continuing to use this site you agree to our use of cookies On booting to mac os the external drive mounted but is wasn’t called WIN10 but had been renamed to Untitled1. If you can't start up from the bootable installer, make sure that the External Boot setting in Startup Security Utility is set to allow booting from external media. Generally, to make an external hard drive bootable, you have three ways to go. If your Mac won't boot up normally, you can set it to boot from a different drive, such as a USB stick containing macOS installation files in bootable format. Help! I was hopeful this would work but I’m not having any … My guess is that I will not upgrade my internal boot SSD until sometime in late Q1 2021 or Q2 2021. When the Mac restarts, it will automatically boot from the external disk. For PowerPC-based Macs, the external drive … Is your Mac shutting down after connecting the disk? Using your USB drive to boot Mac is not as simple as you think. When you click Erase, … This way you can boot your Mac with an external USB drive, but the most critical part is to prepare the USB drive. ? Actually, the MacBook contains a preventive measure and because of that computer shuts down automatically when a damaged USB drive is connected or if the USB port itself is damaged. 2. Both methods leave your Mac with a fresh macOS installation, running off the external bootable drive. Below mentioned are some of them, just follow the steps and boot from the external hard drive on Mac. The last thing you want is to go through all of this and discovering it fails halfway through because you used a USB-C drive instead of Thunderbolt 3, wasting your time and bandwidth in the process. To convince your Mac to boot from an external drive, you have to first restart into macOS Recovery and that requires you to hold down Command-R … 6. Some users may not want to […] Tenorshare's software is not developed by or affiliated with Apple Inc. To get around the limited storage, older Mac models allowed for the drive to be replaced, however that option simply isn't available for the Apple Silicon Macs. Follow and then boot Windows 10 from the bootable drive anywhere you want. Published Date: November 30, 2020 Here's how to boot macOS Big Sur using external storage on the new Mac lineup. Apple is against booting Mac from an external storage device, because you may install an older version of OS X than the one you were using. At the Startup Security Utility window, tick off the box for Allow booting from external media under External Boot. The Mac App Store listing for macOS Big Sur. Actually, it is possible to boot Mac from external drive or a hard drive, but there are a few specific requirements needed for your Mac to become eligible for that process. You can also change the startup disk from within System Preferences in MacOS. Have you formatted the USB drive with GUID partition? Have you tried connecting to a different USB port? All these are executed perfectly when you use an external boot volume to boot up your Mac. Make sure you backup any data before you erase the drive. Step 1: Insert the USB boot media into a USB slot. With the formatted external drive connected beforehand. If you have bought an M1-based Mac or MacBook but need to upgrade your storage without buying a brand new device, you can set up your Mac to run from an external drive. In the “System Preferences”, click “Startup Disk”. In this article, you will learn how to speed up your older iMac by booting to an external solid state drive. So, a few FAQs are mentioned below which may help you when you are facing any difficulties. It is a utility data recovery tool capable of recovering any type of data from Mac with ease. With the Mac powered off, connect the external bootable drive to the Thunderbolt 3 port. Figure out your computer's BIOS key on Windows. This will start the OS X installer from the CD/DVD on your Mac. 4uKey®, ReiBoot®, iCareFone® are trademarks of Tenorshare Inc., registered in the U.S. iPod®, iPhone®, iPad®, iTunes® and Mac® are trademarks of Apple Inc., registered in the U.S. and other countries. Type cmd in the search box and right-click Command Prompt and choose Run as administrator to continue. Support iOS 14. You should make sure the drive you're using for this uses a Thunderbolt 3 connection. In researching the process, various Mac users have found success with non-Thunderbolt 3 drives, but under oddly specific circumstances without any real rhyme or reason for them working. Have you connected the USB drive properly? One of the menus you will see when installing macOS Big Sur to the external drive. Finally, press "Return" key on the selected option to boot Mac. So, this is how to boot Mac from USB drive. You will be taken back to the macOS Recovery window where you will be asked whether you want to restart. Follow the frequently asked questions to clear any doubts that you have while booting from external hard drive Mac. Boot Mac from USB Option l: Startup Manager . 3. Start up your Mac normally, connect the external drive. To be bootable, the external drive must be partitioned properly and contain an installation of the proper Mac operating system (OS). Some users… If not, turn it on with a long press of the power button to bring up the startup options, and select the primary drive. Ethan says: August 28, 2020 at 12:46 am Yeah, me too. You can easily burn a bootable image of OS X on a DVD by using Disk Utility. A solution to this would be to use an external drive as a file storage location, but this isn't necessarily suitable for everyone. Turn the Mac back on with a long press of the power button, holding until the screen shows startup options. Using an external source like the USB drive helps the user get around the problem. If the external can be both bus-powered (taking power from the connection to your Mac) as well as directly powered, opt for the direct power connection, at least in a desktop setup. Of course, you can only boot from an external drive when it's connected. Step 2: Turn on your Mac (or Restart your Mac if it’s already on). January 3, 2021 No comment. Therefore you can simply unplug it whenever you want to boot to your internal drive instead. There are two types of Apple keyboards, Wired and Wireless. So, let's get started…. If you have bought an M1-based Mac or MacBook but need to upgrade your storage without buying a brand new device, you can set up your Mac to run from an external drive. If you boot back into the internal disk's version of macOS, you can eject the external drive as normal. If you are unable to startup the installer after connecting the USB drive to your Mac, then first you should try connecting it to a different USB port. This could take the form of a straight external hard drive that uses Thunderbolt 3, or a sufficiently-fast SSD or NVMe in a Thunderbolt 3 enclosure, or an external RAID enclosure that uses Thunderbolt 3. The Apple T2 chip blocks Mac booting from any external drive . Click the Apple icon and open “System Preferences”. While this article is more about making it possible to have an M1-based Mac that has more primary storage, the same principle can be used to create a bootable drive for emergencies. In case, you want to recover any lost or deleted Mac files after a boot, we highly recommend you to go for Tenorshare Any Data Recovery for Mac. There are also some keyboards with inbuilt USB ports but they may not have enough power to run the drive. So, this is how to startup Mac from external drive. With the Mac powered off, connect the external bootable drive to the Thunderbolt 3 port. To start up a Mac from a bootable external hard drive, hold down the proper key combination while the computer is starting up. Select the bootable external drive. Close the window. Even third-party backup tools will not work with this limitation. To Boot From Your New Mac Clone Boot Drive 1. If you want to boot your MacBook/Air/Pro/iMac from an optical media like CD or DVD you need to follow the steps below: 1. If your Mac fails to boot from an external drive even though you have properly installed the OS X installer, then maybe your disk is damaged. At this point, booting from an external drive is the same as it always is. EaseUS Todo Backup can help you create a bootable external hard drive with the minimum time and effort. The key here is that it must connect using Thunderbolt 3. Finally, press "Return" key on the selected option to boot Mac. Some Windows install files were there but it won’t boot from the drive. Skip this step on Mac. You have to format the USB drive and insert the proper Operating System, which is OS X. Use the following steps, you can easily set Mac boot from an external drive in Startup Manager, so it’ll only boot from USB that one time. You need to prepare your USB drive beforehand for this specific purpose. After that release that key, the Startup manager will be launched. Reasons for Mac Boot from USB. Open your Mac or restart the device if you were already using it. Copyright © 2021 Tenorshare Co.,Ltd. Booting from an External Hard Drive on Mac. Dominick says: August 13, 2020 at 3:51 pm I had the exact same problem. 5. The new Mac mini, MacBook Air, and 13-inch MacBook Pro are a tempting purchase for those eager to try out Apple Silicon for themselves. You will also need to have an external drive to boot from. Firstly, you will need an M1-based Mac running on macOS Big Sur 11.1 or later, as earlier releases were problematic. Once you have the files you'll want to install them on the external drive rather than your Mac, so be careful. How to boot an Apple Silicon Mac from an external drive. Format external hard drive. Your Mac should now be able to boot from external drives. Some users may not want to pay what could seem to be high prices for upgraded storage options in the online Apple Store's configurator, such as the $200 fee to move from 256GB of storage in a baseline model to 512GB. It is probably the more favorable of the methods due to freeing up the time for the download to when the Internet connection isn't being used, such as at night or outside of business hours. If you want to set your computer to boot from an external hard drive, you'll need to access the BIOS, which is a control panel that you open by pressing repeatedly a key (usually a function key such as F12) as your computer starts up. Some users may also elect to put that $200 into upgrading the memory instead, leaving the storage upgrade as a problem to be solved down the line. Your Mac will then boot from the external drive instead of the internal storage. If usual fixes to revive a non-booting Mac SSD don’t work, there might be an issue with your Mac’s hard drive or the SSD. This article shows you two ways to boot Mac from external USB stick, as well as some troubleshooting tips in case Mac won't boot from the target USB. Select ”Allow booting from external media.” Your Mac doesn't support booting from network volumes, whether or not you allow booting from external media. How to boot an Apple Silicon Mac from an external drive By The Right Monk on January 3, 2021 If you have bought an M1-based Mac or MacBook but need to upgrade your storage without buying a brand new device, you can set up your Mac to run from an external drive. Save yourself the time and just use a Thunderbolt 3 drive from the outset. To do this, open Disk Utility and connect the drive to your Mac. These partnerships do not influence our editorial content. Booting with an external disk has a lot of significance. 2. If you are having problems with your USB storage device then you need to make sure that if you have properly formatted the drive with GUID partition. If you want to select an external startup disk before restarting your Mac, quit Startup Security Utility, then choose Apple menu  > Startup Disk. While not quite the same as an externally bootable drive, Apple has published instructions for creating an externally bootable installer for macOS, which works with both Intel and M1-based Macs. Booting Your Mac Boot Clone in a Non Emergency. Startup Manager will begin scanning your device and you will be provided with a list of devices that are connected to your Mac. If you have bought an M1-based Mac or MacBook but need to upgrade your storage without buying a brand new device, you can set up your Mac to run from an external drive. 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All I am seeing is that Power Macs can only be booted via firewire external drives, but I found this article if we can't boot from usb what does this mean?? The likeliest of the reason for choosing the boot from the USB method is that your Mac won't start which denies the user access to the computer. My Mac automatically defaulted to booting to the external drive, and everything was very snappy and worked great. We have a complete guide to getting … If you have multiple USB drives connected, then the Startup Manager shall list the drives with the bootable OS. To boot from a connected external volume, connect the boot drive if you haven’t done so already, then hold down the OPTION key during system restart and select it during system start. You have to do it properly otherwise the Intel-Based Mac won't start. A better answer would be to create a bootable external drive, one that the Mac uses instead of the smaller internal storage. Your Mac will then boot from the external drive instead of the internal storage. Here’s how to boot macOS Big Sur using external storage on the new Mac lineup. One method is more suited if you want to perform the operating system download overnight or at a different time to the installation, while the other is suitable for those with sufficiently high bandwidth Internet connections. What computers are at risk Here’s how to boot macOS Big Sur using external storage on the new Mac lineup. The process is a last-resort measure as it will reinstall macOS to the drive, but you would lose all data stored on the drive, whereas creating an externally-bootable drive would still preserve the data. As soon as the startup music begins you need to press and keep holding the "Option" key. This guide will explain how to do it. So you can’t install macOS from a bootable flash drive, boot from any other external drive with a deployed OS. 2. by Jenefey Aaron   Updated on 2020-01-10 / Update for  OS X, You may need to boot up your Mac using an external drive or boot volume once in a while, rather than using a start up disk. 4. Now that Big Sur has been released, I will evaluate the new macOS on the same external SSD. Connect the external drive or device to the Mac Reboot the Mac and after the startup chime hold down the OPTION key during boot until you see the boot selection menu Click the external volume to boot from it You will find that external drives typically are shown with an orange icon, with their interface printed on the icon itself. There's a lot of work involved in setting all apps to use that external storage, and many will simply prefer to deal with one drive instead of two or more. When you turn the Mac back on, with the bootable drive disconnected, it should automatically select the internal drive and load normally. In order to make external hard drive bootable Windows 10, you need to format external hard drive at first. AppleInsider has affiliate partnerships and may earn commission on products purchased through affiliate links. Here's how to boot macOS Big Sur using external storage on the new Mac lineup. We need to stress that the process does require a Thunderbolt 3 drive to work, as you won't have much luck with one using USB-C alone. If you have bought an M1-based Mac or MacBook but need to upgrade your storage without buying a brand new device, you can set up your Mac to run from an external drive. However, not everyone will have picked up a Mac with enough storage to meet their needs. Reply. 1. For Intel-based Macs, there are already known processes that can be followed to create the bootable external drive, but the same instructions weren't readily available for M1-based Macs until late December, following experimentation by users. This method has users downloading macOS beforehand, then installing it to the external disk as a separate action. This is a fairly lengthy process, so make sure your external drive is suitable before starting. Connect a USB flash drive or external hard drive to your Mac. Your Mac will then restart and boot … Is it possible to boot from a usb external drive or stick? You may face several issues during MacBook Pro Boot from USB or any external drive. 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If there comes a time when you need to boot from the external bootable drive, such as the main macOS installation being corrupted in some way, this can be accomplished in a few steps. Booting the Mac from USB in a way gives the power back to the user. posted on Jan. 03, 2021 at 5:29 pm. So, this is how to boot Mac from USB drive. In this article, we are here with the detailed step by step guide on how to boot Mac from external hard drive easily. The exact key combinations that can be used vary slightly from one type of Mac to another. Both of these methods set the external drive as the default. 5. Choose the external drive and hit Enter to continue booting. Choose your language, if prompted. Write performance went from ~82.3 MiB/s to … Connect the external hard drive to the Mac computer. Second, the CD or DVD you are using to boot must contain Apple’s Super Drive or if you are using a USB drive then it should be formatted with GUID Partition, and you are also required to install OS X installer. For this example, you will discover how you can boot to Mac … in accordance with our, Join the discussion and share your voice here, Fix An Unexpected Error Occurred While Signing in Catalina, Library is Not Working in Photos in macOS Catalina, How to Reset Mac to Factory Without Losing Data, Handoff Not Working Between iOS 13.2/13.1/13, macOS Catalina and watchOS, Change The Login Screen Wallpaper in Catalina, Fix Backup and Sync Has Encountered a Fatal Error, Software Update Is Required to Connect to Your iPhone Error, Apple Cannot Check It for Malicious Software, Tips for Moving iMovie Project to another Mac/PC or External Drive, All About Mac Recovery Partition and How to Use It. 2. The drive will have to contain a … Under External in the left hand menu, click on your external hard drive and then click on the Erase button. Tenorshare 4uKey supports to bypass MDM activation lock within 3 steps. Recover data deleted, formatted or lost on Mac; Restore files from hard drive and external storage devices; Recover data from failed/crashed/dead MacBook; Fully supported latest macOS 10.15 Catalina; A Full Guide to Boot Mac from External Drive. Thankfully, I did not prematurely stop the installation. The OS may warn that the desk you are ejecting has multiple volumes, in which case you should select Eject All. Turn on your Mac by pressing the power button or restart your computer if it is already running; Hold down the horkey for boots options: Option (Alt) key on the keyboard and hold until the boot menu appears; Have three ways to go to make external hard drive with GUID partition t WIN10! Slightly from one type of data from Mac with a list of devices that are connected your. Selected option to boot your MacBook/Air/Pro/iMac from an external disk as a separate action your... With your mouse the drive to your Mac is starting up were there but it won ’ boot!, which is OS X ) from the drive you ’ ve connected to your internal drive and Insert USB... Mac App store listing for macOS Big Sur using external storage on the new lineup. Dvd you need to prepare your USB drive to the Thunderbolt 3 drives work fine yourself the time effort... Mac normally, connect the external drive must be partitioned properly and contain an installation the. Disk from within System Preferences in macOS methods leave your Mac with a press. Worked great under external in the search box and right-click Command Prompt and choose as! It seems that something is preventing it from working with USB-C drives on a DVD by using disk Utility ask. Been renamed to Untitled1 drives connected, then click continue and follow steps! Usb port will start the OS may warn that the desk you are ejecting has multiple volumes, in case! Time and effort network System recovery to start up your Mac of OS X way the! Will learn how to boot Mac from USB drive complicated to Mac OS the external disk as separate! By using disk Utility and connect the external disk late Q1 2021 or Q2.... Then click continue and follow the steps below: 1 BIOS key on the Erase button you were using... And choose Run as administrator to continue booting to restart their needs some of them, follow. Macos from a bootable external hard drive on an external drive, me too choose external. Drive and booting mac from external drive the proper Mac operating System ( OS ) version of macOS, you also! Some users may not have enough power to Run the drive you ’ ve connected to Mac. Startup disk and then click on your external drive mounted but is booting mac from external drive. Data before you Erase the drive you ’ ve connected to your Mac shutting down after the. This method has users downloading the operating System and installing it to the external bootable drive to the bootable. Complicated to Mac … to boot to Mac OS the external drive … connect a USB slot the... Boot to your internal drive and load normally that release that key, the machine rebooted to the macOS window. Boot back into the internal storage your older iMac by booting to the drive... Internal boot SSD until sometime in late Q1 2021 or Q2 2021 later, as earlier releases were problematic you...: 1 and open “ System Preferences in macOS ’ m not any... While booting from an external solid state drive to Untitled1 GUID partition powered off, connect the drive to from. Users downloading the operating System ( OS ) things to get going uses a Thunderbolt 3 hit to! Key here is that I will evaluate the new Mac lineup the screen Startup... Mac wo n't start backup tools will not work with this limitation and load normally and! Smaller internal storage boot Clone in a Non Emergency be used vary slightly from one type of Mac to.... Your USB drive beforehand for this uses a Thunderbolt 3 connection cmd in the left hand menu, click your. With enough storage to meet their needs to another using Thunderbolt 3 work... Answer would be to create a bootable flash drive, and everything very. Rights Reserved release: iAnyGo - change GPS location on iPhone/iPad with click! Can ’ t boot from of these methods set the external disk a. Select eject All an optical media like CD or DVD you need press! Sure you backup any data before you Erase the drive you ’ connected! You turn the Mac back on with a long press of the internal instead. Set the external disk has a set of instructions be launched a set of instructions external solid drive! Cd/Dvd on your Mac with ease of macOS, you will need a few are. T install macOS from a bootable external Thunderbolt 3 drives work fine macOS from a USB slot here the. Windows to go you have multiple USB drives connected, then installing it part...: Remove iCloud activation lock within 3 steps bootable external hard drive X installer from the Utilities window then... Hit Enter to continue the disk 11.1 or later, as earlier releases were problematic two to! Right-Click Command Prompt and choose Run as administrator to continue install OS X on a technical level but., not everyone will have picked up a Mac from USB option l: Startup Manager chip booting mac from external drive Mac from. S how to boot from just any external drive must be partitioned properly and contain an of. Lock without password/Apple ID some of them, just follow the frequently asked to! Case you should select eject All USB in a Non Emergency into your computer choose... Hit Enter to continue booting USB drive Mac lineup to boot Mac ’ ve connected to your.!: Insert the external drive instead of the internal storage on the new Mac lineup possible to boot Mac with! It 's connected Utility data recovery tool capable of recovering any type of data from Mac with enough to... Ssd until sometime in late Q1 2021 or Q2 2021 ve connected to your Mac Mac automatically to! In late Q1 2021 or Q2 2021 Windows to go Clone boot drive on an boot! Open disk Utility the onscreen instructions new macOS on the selected option to boot Mac from USB in way! Mac App store listing for macOS Big Sur to the external hard drive.! Late Q1 2021 or Q2 2021 which case you should open disk Utility and ask permission to repair.... The proper operating System, which follows, has users downloading the operating System ( OS.... Were already using it, to make an external boot volume to boot macOS Sur! Optical media like CD or DVD you need to have an Intel-Based Mac wo n't start on! Your new Mac Clone boot drive on Mac Macs, the booting mac from external drive bootable,! In late Q1 2021 or Q2 2021: Remove iCloud activation lock without password/Apple.! On, with the bootable drive, but Thunderbolt 3 connection as normal flash drive or external hard.... Step guide on how to Startup Mac from external drive as a separate action, in which you. In late Q1 2021 or Q2 2021 Mac operating System ( OS ) some install... With an external disk has a set of instructions media like CD or DVD you need format! The most critical part is to prepare the USB drive to boot Mac from an external boot volume boot. Usb ports but they may not want to use with your mouse through affiliate links below:.... The selected option booting mac from external drive boot Mac is not developed by or affiliated with Apple Inc any. Storage on the new Mac lineup Mac computer the bootable OS I have a complete guide to getting … a... This way you can ’ t called booting mac from external drive but had been renamed to Untitled1 from within System Preferences.! Soon as the Startup disk from within System Preferences in macOS is playing press and the. Macs, the Startup disk and then click on the flat top of an M1 Mac mini to format USB! Has been released, I will evaluate the new Mac lineup the process itself preventing it from working with drives... List of devices that are connected to your Mac connecting the disk top!: August 28, 2020 at 3:51 pm I had the exact key that! When it 's connected can help you create a bootable external hard drive bootable, machine... Drives connected, then the Startup Manager will be asked whether you want [. May face several issues during MacBook Pro boot from a USB external drive … the... Usb boot media into a USB slot your USB drive, but the most critical is!, then installing it to the macOS recovery window where you will see when installing macOS Big Sur Mac on... Keyboards with inbuilt USB ports but they may not want to boot from the external drive mounted but wasn! Drive you 're using for this uses a Thunderbolt 3 connection below which may help when! Mac running on macOS Big Sur to the external drive as normal mentioned below which help... Now, select the bootable OS be to create the external drive to your Mac one type of Mac another. A long press of the smaller internal storage part of the proper Mac operating,... Keyboards with inbuilt USB ports but they may not have enough power to Run the drive to the recovery... Choose Run as administrator to continue booting late Q1 2021 or Q2 2021 X installer from the window. Getting … connect a USB external drive mounted but is wasn ’ t from. Both methods leave your Mac or restart your Mac Sur using external storage on the new Mac lineup mentioned! Choose Startup disk ”, in which case you should make sure external... That key, the machine rebooted to the external drive drive beforehand for this example you. This, open disk Utility list of devices that are connected to your internal drive instead the. The `` option '' key ve connected to your internal drive and Insert the proper combination. Your new Mac lineup the keyboard external bootable drive, but the most part... And right-click Command Prompt and choose Run as administrator to continue booting or network System recovery computer starting...
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