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1. PERFORM CLEAN INSTALL MAC OS SIERRA HOW TO
2. PERFORM CLEAN INSTALL MAC OS SIERRA UPDATE
3. PERFORM CLEAN INSTALL MAC OS SIERRA UPGRADE
4. PERFORM CLEAN INSTALL MAC OS SIERRA SOFTWARE
5. PERFORM CLEAN INSTALL MAC OS SIERRA DOWNLOAD

Now that you have completed the checks and backed up your data, it is time to get started.

Unfortunately, not all Macs can support MacOS Sierra, so check to see if your device is in this list:

PERFORM CLEAN INSTALL MAC OS SIERRA HOW TO

You can find out how to get your Mac ready here. Make sure you save all of your important files, images, etc.

Getting readyīefore you rush into the installation of this new OS, there are a few things to take care of. Just as you would when upgrading to a new version of iOS, you need to back up your data.

PERFORM CLEAN INSTALL MAC OS SIERRA UPGRADE

However, I am going to show you both methods: how to upgrade and how to complete a clean install. Does it have problems at start-up, crash or issues with shutting down? If you can answer yes to any one of these issues, a clean install is a must for you!

PERFORM CLEAN INSTALL MAC OS SIERRA SOFTWARE

Though the chance is little, use EaseUS hard drive recovery software to recover files while reinstalling macOS.If right now you’re wondering why bother with the clean install, consider whether your Mac is running slower than it used to. The process requires you to use the Terminal command lines to erase the USB drive, format it with a proper file system, and save the installer to it.

PERFORM CLEAN INSTALL MAC OS SIERRA DOWNLOAD

The three steps to download macOS, create a bootable installer to an external USB and then clean install macOS from USB should be clear and simple to follow. When the macOS installer opens, follow the onscreen instructions. Select the volume containing the bootable installer, then click Continue. Turn on your Mac and continue to hold the power button until you see the startup options window, which shows your bootable volumes. Select Install macOS (or Install OS X) from the Utilities window, then click Continue and follow the onscreen instructions. Select the volume containing the bootable installer. Release the Option key when you see a dark screen showing your bootable volumes. Press and hold the Option (Alt) ⌥ key immediately after turning on or restarting your Mac. Also, the USB drive needs formatting as Mac OS Extended (HFS+). The installer creation process will format and erase all data on the external USB to take effect. If you want to use an old USB drive for installation, make sure that you've copied the data and saved it as a backup. Create the Bootable Installer After Downloadįirst of all, a vacant 16GB USB drive is essential. This download is presented in a disk image format named InstallMacOSX.dmg. OS X El Capitan is quite different from the other five. Enterprise administrators, please download from Apple, not a locally hosted software-update server. If the installer opens after downloading, quit it without continuing installation. To get the correct installer, download from a Mac that is using macOS Sierra 10.12.5 or later, or El Capitan 10.11.6. Q3: Can I install macOS from USB without the internet?Ī bootable installer doesn't download macOS from the internet, but it does require an internet connection to get firmware and other information specific to the Mac model.Ĭlick the download link for the desired macOS version you want to install.Įach macOS download is going to send to the Applications folder as an app named Install macOS. You need to create the installer using correct Terminal commands for different macOS versions.

Q2: How do I create a bootable installer for macOS?Īll the available installer can be found on the Mac App Store, including macOS Monterey, macOS Big Sur, macOS Catalina, macOS Mojave, or macOS High Sierra and OS X El Capitan.

PERFORM CLEAN INSTALL MAC OS SIERRA UPDATE

The benefits of installing macOS from USB compared with the automatic software update option include: Now let's begin with some of the most frequently asked questions that many users are trying to get an answer. Nonetheless, we're trying to make the entire procedure simple to follow, and ensuring you not make mistakes.

Installing a Mac operating system in this way can be challenging, as the whole process is involved with the application of Terminal command lines and creating a bootable installer. Some Basics of macOS install from a bootable USB Drive In this regard, you need to install macOS from an external drive or USB. But sometimes, we may require a clean install of a macOS version for hardware/software troubleshooting, or to be able to install the same macOS system on multiple devices at the same time. To upgrade and install the latest macOS update on your Mac machine, you can easily get it within the system's Software Update option.