Create a bootable macOS installer Download macOS High Sierra from the App Store. When it’s done, the installer will launch. Plug in the USB stick and start Disk Utilities. Give the USB stick a name and then click Erase. Click the Erase tab and make sure Mac OS Extended (Journaled) is selected on the Format tab.
How do I clean my High Sierra installation boot from USB?
Clean Install macOS High Sierra from a bootable USB drive. Take your bootable USB and connect it to your Mac. Proceed by erasing your hard drive from Disk Utility. To continue, restart your Mac while holding down the Option key. This will open the Startup Manager, where you can start the clean install.
How to Clean Install macOS High Sierra?
Performing a clean install of macOS High Sierra Step 1: Back up your Mac. As noted, we are going to erase everything on the Mac. Step 2: Create a bootable macOS High Sierra installer. Step 3: Erase and format the Mac startup disk. Step 4: Install macOS High Sierra. Step 5: Restore data, files, and apps.
How do I install macOS Sierra on my Macbook Pro from USB?
The Easy Option: Disk Creator Download the macOS Sierra installer and Disk Creator. Insert an 8 GB (or larger) flash drive. Open Disc Creator and click the “Select OS X installer” button. Locate the Sierra installation file. Select your flash drive from the drop-down menu. Click on “Create Installer”.
How do I install macOS High Sierra without USB?
Restart your Mac or turn it on while holding down the Command + R key combination. Release the Command + R key combination when you see the Apple logo on display. Once you see a window like the one below, click Disk Utility and Erase your main Mac HDD (or SSD).
Can you install Mac OS from USB?
Use an external drive or USB to install a fresh copy of macOS. You can install or reinstall the Mac operating system on a supported device using an external drive. The latest MacBooks only have USB-C ports. To install macOS on these computers, you’ll need a flash drive that supports USB-C or a USB hub or adapter.
How do I make my High Sierra bootable USB?
To install High Sierra from a USB using your startup disk: Go to System Preferences. Click Startup Disk and select the installer. Restart your Mac. Hold down Command (⌘) + R to boot into recovery mode. Plug in your macOS High Sierra bootable USB. Within a few seconds, a macOS Utility screen should appear.
Why can’t I download High Sierra on my Mac?
If you’re still having trouble downloading macOS High Sierra, try finding the partially downloaded macOS 10.13 files and a file called “Install macOS 10.13” on your hard drive. Remove them, then restart your Mac and try downloading macOS High Sierra again. You may be able to continue the Download from there.
Can I uninstall macOS High Sierra?
No. All it does is take up space. The system doesn’t need it. You can uninstall it, but remember that if you ever want to reinstall Sierra, you’ll have to download it again.
How do I reinstall Macbook Pro from USB?
Reinstall MacOS, Insert the USB drive and turn on the machine. Hold down the Option key while doing this and release the Option key when a dark screen shows your bootable volumes. Select the book for your bootable USB drive, click the up arrow, or press Return. Your Mac will then reboot.
How do I boot my Mac from USB?
Insert the USB bootable media into an open USB slot. Press the power button to turn on your Mac (or restart your Mac if it’s already on). When you hear the startup chime, hold down the Option key. Holding that key will give you access to OS X’s Startup Manager.
How do I install macOS High Sierra from USB on Windows?
Use these steps to create a bootable USB drive with macOS: Download and install TransMac on Windows 10. Plug in the USB flash drive. Right-click on the TransMac app and select the Run as administrator option. Click the Run button.
Is macOS High Sierra still available?
Is Mac OS High Sierra Still Available? Yes, Mac OS High Sierra is still available for Download. It can also be downloaded as an update from the Mac App Store and as an installation file. Newer operating system versions are also available, with a security update to 10.13.
How do I get the macOS High Sierra installer?
Press and hold the [option] or [alt] (⌥) key on the keyboard and turn on the device. When you see the boot selection screen as shown, release the [option] key. Use the arrow keys on your keyboard or mouse to select “Install macOS High Sierra”. Press [enter] or click with the mouse on your selection.
How do I install macOS High Sierra on an external hard drive?
First, you must shut down the Mac on which you want to run Sierra from the bootable drive. Then, before turning it on, connect the drive to the Mac’s USB port. Next, turn on your Mac, and once you hear the startup chime, press and hold the Option key.
How do I reinstall the operating system without USB?
Hold down the shift key on your keyboard while clicking the on/off button on the screen. Continue to hold the shift key while clicking Restart. Continue holding the Shift key until the Advanced Recovery Options menu loads. Click Troubleshoot.
How do I select a drive to install OSX?
Install MacOS Choose Reinstall MacOS (or Reinstall OS X) from the utility window. Click Continue and follow the on-screen instructions. You will be prompted to select your drive. If you don’t see it, click View all industries. Click Install. Your Mac will reboot after the installation is complete.