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How to download mac os high sierra to usb how to#
How to download mac os high sierra to usb mac os x#
How to download mac os high sierra to usb install#
How to download mac os high sierra to usb upgrade#

The command differs, depending on the macOS version you're going to install. In the next step, you'll enter a command in Terminal.

Choose 'Finder' then select 'Go' from the menu bar.

How to download mac os high sierra to usb install#

Connect the USB flash drive to the computer you wish to install macOS.

How to download mac os high sierra to usb mac os x#

(For example, if I had a Core 2 Duo Mac, I would not run anything later than Mac OS X 10.9 Mavericks on it.Once you have your bootable installer ready, it's time to move to the next step. It’s okay to keep running an old Mac OS version. It may be that your current Mac is too old or slow to support macOS Sierra.

Buy a more recent model Mac (at most a couple of years old).

Use the Mac Recovery System to download and install the original OS version that came with your Mac.

If you know the Mac OS X version which came with your Mac originally, consider downloading (if you still have access) and installing that version first.

How to download mac os high sierra to usb upgrade#

Download an older Mac OS X version, say Mac OS X 10.11 El Capitan, install that, and then upgrade to macOS Sierra.

Even if the checksum is okay, you may want to re-download in case there is a newer version of the installer with a bug fix for your very problem.

Delete and re-download the macOS Sierra installer (especially if you downloaded it a long while ago).

Finally, retry the macOS Sierra install.

Run the Apple Hardware Diagnostic or Test to make sure you don’t have a hardware failure.

Reset the SMC (see step 3 under the “Reset the SMC on Mac notebook computers” section).

How to download mac os high sierra to usb how to#

Some suggestions on how to proceed: M4a to mp3 app for windows 10. The next step is to retreat and try again. Giving up means you have accepted defeat. Or you can run Erase twice the first time will unmount the partition and fail, and the second time will actually do the format (which will succeed). You can manually unmount the partition before running Erase. Note: Again, the Erase function will fail if the hard drive’s partition is mounted.For mechanical hard drive, it may several minutes to hours, depending upon the size, speed, and condition of your hard drive. For SSD (Solid State Drive), the format operation may take less than a minute to complete.Click the “Erase…” button at the bottom.Select “GUID Partition Map” for “Scheme”.Click on the “Erase” button at the top.On the left-hand pane, select the hard drive (not the partition under it, if any).Click on the “Disk Utility” option and click the “Continue” button on the bottom to launch the “Disk Utility” application.Do the following to format the internal hard drive: When the installer finishes loading, you will see a “macOS Utilities” window appear. Note: Under macOS Sierra, the Erase function will fail if the USB drive’s partition is mounted.(USB 2.0 and large capacity drives will take longer.) After the format completes, the partition will be mounted under “/Volumes/Sierra” (or whatever name you selected above). The format operation may take several minutes to complete.

Click the “Erase” button in the warning popup dialog if you get one.

Select “Master Boot Record” for “Scheme”.

Select “Mac OS Extended (Journaled)” for “Format”.

Input a name like “Sierra” (this name will be overwritten later).

Click on the “Erase” tab (or button at the top).

On the left-hand pane, select the USB drive (not the partition under it, if any).

Plug the USB flash drive into your Mac.

Mac Os High Sierra Bootable Usb On Hard Drive Downloadįormat the USB flash drive using these steps:.

How to create a bootable macOS High Sierra installer drive Put the macOS High Sierra installer on an external USB thumb drive or hard drive and use it to install the operating system on a Mac.

Macworld also has bootable-install-drive instructions for: mac OS High Sierra (10.13) El Capitan (OS X 10.11) Yosemite (OS X 10.10) Mavericks (OS X 10.9).

Proceed and follow the next steps for creating bootable USB drive. Open the Finder window and navigate to Applications Install macOS Sierra.

Storage-USB 3.0 drive of 8GB or more, or an external USB hard drive, or a Firewire or Thunderbolt external hard drive A copy of DiskMaker X Locate the macOS Sierra Installer.

Generally, the latest version supports only the latest version of macOS if you want to install something older than macOS High Sierra, check the list of older versions and download one that’s compatible with your chosen operating system.

The simplest way to create a boot USB drive is to download DiskMaker X and use it to create your drive.