Best answer: How do I make a bootable macOS High Sierra USB install?

How do I make my High Sierra bootable USB?

To install High Sierra from a USB using your startup disk drive:

1. Go to System Preferences.
2. Click on Startup Disk and select the installer.
3. Restart your Mac.
4. Hold down Command (⌘) + R to boot into recovery mode.
5. Connect your macOS High Sierra bootable USB.
6. Within a few seconds, a macOS Utility screen should pop up.

How do I make a macOS Sierra installer drive bootable?

The Easy Option: Disk Creator

1. Download the macOS Sierra installer and Disk Creator.
2. Insert an 8GB (or larger) flash drive. …
3. Open Disc Creator and click the “Select the OS X Installer” button.
4. Find the Sierra installer file. …
5. Select your flash drive from the drop-down menu.
6. Click “Create Installer.”

How do I make a bootable USB for Mac?

To create a bootable macOS Big Sur installer drive with Terminal, follow these steps:

1. Download the installer.
2. Go to Applications > Utilities > Terminal.
3. Plug in a USB drive.
4. Enter the command sudo /Applications/Install macOS Mojave. …
5. Hit Enter and type in your password.
6. Confirm the formatting of the USB drive.

How do I download a full macOS High Sierra installer app and create the bootable USB?

How to Download the Full “Install macOS High Sierra. app” Application

1. Go to dosdude1.com here and download the High Sierra patcher application*
2. Launch “MacOS High Sierra Patcher” and ignore everything about patching, instead pull down the “Tools” menu and choose “Download MacOS High Sierra”

Can I still download macOS High Sierra?

Is Mac OS High Sierra still available? Yes, Mac OS High Sierra is still available to download. I can also be downloaded as an update from the Mac App Store and as an installation file. … There are newer versions of the OS available too, with a security update for 10.13.

How do I get macOS High Sierra installer?

Hold down the [option] or [alt] (⌥) key on the keyboard and power on the device. When you see the boot selection screen as shown, release the [option] key. Use either the keyboard’s arrow keys or the mouse to select “Install MacOS High Sierra.” Press [enter] or click your selection with the mouse.

How do I download macOS High Sierra installer?

Download the macOS Sierra installer



Launch the App Store app, then look for macOS Sierra in the store. (Here’s a link.) Click on the Download button, and your Mac will download the installer to your Applications folder. If it automatically launches after download, quit the installer.

How do I reinstall Mac OS from USB?

Simply plug your created USB drive into an open USB port on your Mac. Power on the system, or restart it if it’s already on. Immediately press and hold the Option (Alt) key on your keyboard when it starts booting. You should now see an option to select your USB drive as a startup disk.

How do I know if my Mac USB is bootable?

Helpful answers



Open Startup Disk in System Preferences. If it shows in the list, it should be bootable. Open Startup Disk in System Preferences. If it shows in the list, it should be bootable.

How do I make a bootable USB from an ISO file on a Mac?

How to Make a Bootable USB Stick from an ISO File on an Apple Mac OS X

1. Download the desired file.
2. Open the Terminal (in /Applications/Utilities/ or query Terminal in Spotlight)
3. Convert the .iso file to .img using the convert option of hdiutil: …
4. Run diskutil list to get the current list of devices.
5. Insert your flash media.

How do I make a USB stick bootable?

To create a bootable USB flash drive

1. Insert a USB flash drive into a running computer.
2. Open a Command Prompt window as an administrator.
3. Type diskpart .
4. In the new command line window that opens, to determine the USB flash drive number or drive letter, at the command prompt, type list disk , and then click ENTER.

How do I download OSX without App Store?

How to Download a Full MacOS Catalina Installer Without the App Store

1. Head over to the dosdude1 website and click on “Download Latest Version” to begin downloading the macOS Catalina Patcher on to your system. …
2. This will open up a new window. …
3. Click on “Continue” to begin with the macOS Catalina installation procedure.