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#INSTALL MAC OS SIERRA CLEAN HOW TO#
#INSTALL MAC OS SIERRA CLEAN MAC OS#
#INSTALL MAC OS SIERRA CLEAN INSTALL#
#INSTALL MAC OS SIERRA CLEAN UPDATE#
#INSTALL MAC OS SIERRA CLEAN UPGRADE#

Restart your Mac while holding the Option key or Cmd+R. Plug in the bootable macOS Sierra installer USB drive to your Mac.ģ.

#INSTALL MAC OS SIERRA CLEAN HOW TO#

When the process is complete, the Terminal window will report "Done." You can quit Terminal and your bootable macOS Sierra installer USB drive is ready for use.Īlso, you can follow the instructions from an Apple article on how to create bootable installer.Ģ. Then, Terminal will copy the installer file to your disk. You’ll see that Terminal erases your drive. It won’t display characters when you type, so just do it. Terminal will ask you for an admin password (the one you use to log in).Sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia -volume /Volumes/Untitled -applicationpath /Applications/Install\ macOS\ Sierra.app -nointeraction Enter the following text into Terminal:.Launch Terminal (Finder Applications Utilities Terminal).If your drive is named something else, you need to rename it (Open Finder -> right click on the USB drive and choose Rename).When the process is complete, click Done, and close the Disk Utility window.

#INSTALL MAC OS SIERRA CLEAN MAC OS#

Select Mac OS Extended (Journaled) from the format list. Click the Erase tab at the top of the Disk Utility window.To format a USB drive launch Disk Utility (Finder -> /Applications/Utilities/Disk Utility).Create a bootable flash drive with macOS Sierra.įirst, make sure your USB flash drive is formatted and named as “Untitled”.

#INSTALL MAC OS SIERRA CLEAN INSTALL#

Step 3: Clean Install macOS Sierra on your startup diskġ.

Click on the “arrow clock” icon and select Back Up Now in the menu bar at the top of the screen.

Choose where you wish to save your files (to the external drive or to the cloud storage).

So, If you skip this step, you wouldn’t be able to recover your data if something goes wrong. Note: A clean install of macOS Sierra on the startup drive completely erases all data on that drive: all your files and documents, including music, movies, pictures, and even apps. Now you’ve got plenty of free space and your Mac is free from system trash. Download CleanMyMac for free, launch it, click Scan, and then Clean. Junk removal with CleanMyMac takes only a few minutes. To make sure Sierra has no troubles installing and works fine after, you need to get rid of system junk on your Mac first. You could clean it up manually, but using a cleaning app like CleanMyMac X will save you hours on that. If you're going to perform a clean install on the startup drive, you need to backup your data, create a bootable copy of the installer, and, finally, boot from the bootable installer.

Backup your Mac to ensure your personal data is intact.Ĭlean Install macOS Sierra on Your Mac’s Startup Drive.

But if you plan to clean install on a non-startup drive (you have and extra HDD or SSD on your Mac), you don't need the USB. This flash drive is only needed for a clean install on your Mac’s startup drive.

Take a 16GB or larger USB flash drive to create a bootable Sierra installer.

Quit macOS Sierra Installer app without performing the installation.

Once the download completes, it will automatically launch.

Download macOS Sierra Installer from the Mac App Store.

Then, you should prepare your Mac for the installation: But, if you like an idea of giving your Mac a fresh start with a new macOS and nothing else, a clean install is the right option for you.Īlso, in case you’ve noticed that with time your Mac is running slower, it has unusual startup or shutdown issues and crashes, a clean install may be a good way to get back the speed and fix the problem.įirst of all, make sure that your Mac is able to run MacOS Sierra. It saves all your personal files, apps and user data, while a so-called clean install of Sierra will erase all data on the startup drive and replace it with a clean copy of OS.

#INSTALL MAC OS SIERRA CLEAN UPGRADE#

Note, that getting an upgrade is the easiest way of installing the new macOS.

LEARN MORE: How to Clean Install the macOS High Sierra? It has plenty of new features, and also has the same easy clean install and upgrade flow as did the previous OS.

#INSTALL MAC OS SIERRA CLEAN UPDATE#

MacOS Sierra is a fantastic update arriving from Apple to make us love our Macs even more. But to help you do it all by yourself, we’ve gathered our best ideas and solutions below.įeatures described in this article refer to the MacPaw site version of CleanMyMac X. So here's a tip for you: Download CleanMyMac to quickly solve some of the issues mentioned in this article.