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A clean install of macOS High Sierra will ensure the maximum performance for your Mac. The reason is pretty straight forward: by formatting your Mac drive you will eliminate all the issues accumulated over time and have a clean slate to start again. MacBooster is another wonderful Mac cleaner. It supports to clean up junk files under macOS High Sierra. This Mac cleaner for macOS High Sierra can help Mac users easily and quickly find issues on Mac and fix them. The interface is clean and simple. 4 Mac cleaner for macOS High Sierra - Mac Uninstaller. AppUninser is a powerful Mac uninstaller. It can help Mac users uninstall Mac applications. Sep 27, 2017 HOW TO CLEAN INSTALL macOS High Sierra - With A BOOTABLE FLASH DRIVE - Duration: 18:41. Download mac os sierra installer. How to Clean Your Mac 2019 - Duration: 16:59. Cox 1,389,491 views. To make sure your Mac device performs optimally, it is necessary to implement a clean install of the High Sierra. The reason is actually quite simple. When you format your Mac device’ hard drive, you are getting rid of all the issues it has gathered over time. Your device will now be a clean slate ready to start anew.
Check compatibility
You can upgrade to macOS Sierra from OS X Lion or later on any of the following Mac models. Your Mac also needs at least 2GB of memory and 8.8GB of available storage space. How to download audacity for mac.
MacBook introduced in late 2009 or later
MacBook Air introduced in late 2010 or later
MacBook Pro introduced in mid 2010 or later
Mac mini introduced in mid 2010 or later
iMac introduced in late 2009 or later
Mac Pro introduced in mid 2010 or later
MacBook Air introduced in late 2010 or later
MacBook Pro introduced in mid 2010 or later
Mac mini introduced in mid 2010 or later
iMac introduced in late 2009 or later
Mac Pro introduced in mid 2010 or later
To find your Mac model, memory, storage space, and macOS version, choose About This Mac from the Apple menu . If your Mac isn't compatible with macOS Sierra, the installer will let you know.
Make a backup
Before installing any upgrade, it’s a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Learn how to back up your Mac.
Get connected
It takes time to download and install macOS, so make sure that you have a reliable Internet connection. If you're using a Mac notebook computer, plug it into AC power.
Download macOS Sierra
For the strongest security and latest features, find out whether you can upgrade to macOS Catalina, the latest version of the Mac operating system.
If you still need macOS Sierra, use this link: Download macOS Sierra. A file named InstallOS.dmg will download to your Mac.
Install the macOS installer
Double-click the downloaded file to open a window showing its contents. Then double-click the file within, named InstallOS.pkg.
Follow the onscreen instructions, which will guide you through the steps necessary to install. Antivirus for mac reviews.
Begin installation
After installation of the installer is complete, open the Applications folder on your Mac, then double-click the file named Install macOS Sierra.
Click Continue and follow the onscreen instructions. You might find it easiest to begin installation in the evening so that it can complete overnight, if needed.
Allow installation to complete
Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart, show a progress bar, or show a blank screen several times as it installs both macOS and related updates to your Mac firmware. https://foryouyellow965.weebly.com/blog/opening-dmg-in-windows.
Learn more
- If you have hardware or software that isn't compatible with macOS Sierra, you might be able to install the previous version, OS X El Capitan.
- macOS Sierra won't install on top of a later version of macOS, but you can erase your disk first or install on another disk.
- You can use macOS Recovery to reinstall macOS.
The main new feature in macOS Sierra is deep Siri integration, bringing Apple's personal assistant to the Mac for the first time. It also adds new features to Photos and Messages, and includes Continuity smarts like Universal Clipboard and an Auto Unlock option for Apple Watch owners.
Mac High Sierra
This tutorial explains how to download macOS Sierra and perform a clean install, which offers several benefits over the automatic upgrade process included in the installation package.
Benefits of a Clean Install
A clean install can remove annoying quirks and strange behaviors that your Mac may have inherited over time due to driver upgrades, wonky apps, and messy installation procedures. Performing a fresh install can also reclaim lost disk space caused by junk files left by third-party apps, and can generally make your Mac feel a lot snappier, enabling you to relive that feeling of booting it up for the first time.
To complete the clean install procedure described below, you'll need an 8GB or larger USB thumb drive and an hour or two to spare.
You should also perform a full backup of your Mac beforehand using Time Machine. That way you can restore your system from the Recovery partition if something goes wrong. Alternatively, save a bootable mirror image of your system to an external drive using a clone utility like SuperDuper! ($27.95) or Carbon Copy Cloner ($39.99).
Compatibility Check
Before you do anything, check that your Mac is compatible with Apple's new operating system. macOS Sierra supports the following:
- iMac (Late 2009 or newer)
- MacBook Air (2010 or newer)
- MacBook (Late 2009 or newer)
- Mac mini (2010 or newer)
- MacBook Pro (2010 or newer)
- Mac Pro (2010 or newer)
Another way of checking if your Mac is compatible is to open the Apple menu in the upper left corner of your Mac's screen and selecting About This Mac. Look just below the OS X version number in the Overview tab – if the Mac model name is the same or a later model year than the one shown in the compatibility list above, your Mac is compatible with Sierra.
Pre-Install Notes
If you want total control of what data gets transferred to the new OS, you can sidestep the Migration Assistant and manually copy any important files and folders on your existing system to an external drive instead. It's also worth taking a screenshot of your desktop, to serve as a record of how you like things set up.
Some users may find it useful to make a note of the contents of their Applications folder for later reference. A screenshot may suffice (Command-Shift-4, then Space to capture the Finder window), but if not, the following steps describe a simple way to create a list of apps.
- Open the Applications folder and press Command+A to select all apps in the Finder window, then press Command+C.
- Now open up TextEdit, create a new document, select Format -> Make Plain Text from the menu bar, and press Command+V to paste a list of app names into the document.
- If necessary, add details of download locations for any non-Mac App Store apps you use, append any serial numbers you might need, and save the text document to an external drive.
Lastly, de-authorize any services on your Mac, including your iTunes account (iTunes menu > Store > Deauthorize this Computer), since these are usually limited to a set number of systems.
![Mac Mac](https://www.easeus.com/images_2016/utilities/clean-genius-cleaner-pic.png)
Create a Bootable Installer
Download the macOS Sierra installation package from the Mac App Store. Once it has downloaded, follow these steps to create a USB bootable installer.
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- Open Disk Utility (found in the Applications/Utilities folder), select the thumb drive in the sidebar and click the 'Erase' button.
- Name the USB drive 'Untitled' if it isn't already, choose the Format 'OS X Extended (Journaled)', and click 'Erase'. Once your thumb drive is formatted and the macOS installation package has finished downloading, open up Terminal (found in Applications/Utilities).
- Now, ensure the USB drive is the only disk named 'Untitled' connected to your Mac, and then paste the following command into the Terminal window, and press Enter: sudo /Applications/Install macOS Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install macOS Sierra.app --nointeraction
- You should be prompted for your administrator password. Enter it, and the command will create a bootable Sierra installer on the USB drive. The process will take a few minutes to complete, so leave it running.
Restart and Install
Once the USB installer has been created, restart your Mac and hold down the Option key as soon as you hear the reboot tone. Then follow these steps:
- Use the mouse pointer or the arrow keys on your keyboard to select the disk called 'Install macOS Sierra' in the drive list that appears on the screen.
- Once the USB drive has booted, select 'Disk Utility' from the Utilities window, choose your Mac's startup drive from the list, and click 'Erase'.
- When your Mac's startup disk is formatted, return to the Utilities window and select 'Install macOS', choose your freshly erased startup drive when asked where to install the OS, and follow the onscreen prompts to complete the installation.
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Post-Install Steps
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