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#Clean install mac os x high sierra how to
#Clean install mac os x high sierra update
#Clean install mac os x high sierra full

To install the original factory version when the computer was new use Command-Option-Shift-R.) Ensure the type is Mac OS X and the version is macOS 10. (To install the version of OS X that was currently installed use Command-Option-R. 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.

#Clean install mac os x high sierra how to

Here is how to clean install macOS High Sierra, Sierra or OS X on Mac. A clean install of macOS High Sierra will ensure the maximum performance for your Mac. If you want to give your Mac a fresh restart, you can perform a clean install of Mac OS. Immediately after the chime hold down the Command-Option-SHIFT-R keys until a globe appears. Why opt to clean install macOS High Sierra.

#Clean install mac os x high sierra full

You would either need a copy of the Sierra full installer application or re-download the installer from the Purchases page in App Store or have made a bootable flash drive installer for Sierra.

#Clean install mac os x high sierra update

Then you need have a way to install Sierra. The macOS High Sierra 10.13.6 Supplemental Update improves the stability and reliability of MacBook Pro with Touch Bar (2018) computers and is recommended for all users. You cannot downgrade without first erasing the drive. Use Command-Option-Shift-R to install the original factory version when the computer was new. Use Command-Option-Rto install the version of OS X that was currently installed. 11) Plug the USB installer we just created into the unsupported machine.Turn on the unsupported machine whilst holding down the alt/option key. Select Reinstall OS X and click on the Continue button. Once the installer is created, Sierra Patcher will say Completeand your USB drive should now show as OS X Base System instead of its previous name.Play music at the same time on multiple AirPlay 2-enabled speakers in your house, all in sync.

Control your home audio system and AirPlay 2-enabled speakers throughout your house.

Quit Disk Utility and return to the Utility Menu. The macOS High Sierra 10.13.6 update adds AirPlay 2 multi-room audio support for iTunes and improves the stability and security of your Mac.

Click on the Apply button, then click on the Done button when it activates.

Set the Format type to Mac OS Extended (Journaled.).

Click on the Erase tab in Disk Utility's main window.

When Disk Utility loads select the drive (usually, the out-dented entry) from the side list.

Select Disk Utility and click on the Continue button.

The Utility Menu will appear in from 5-20 minutes.

Immediately after the chime hold down the Command-Option-R keys until a globe appears. Are you sure the SSD is locked? What do you find in Disk Utility? From what are you attempting to reinstall Sierra? Exactly how did you erase the SSD and try reinstalling macOS?Ĭlean Install of El Capitan or Later on a Clean Disk