Clean install macos sierra mac os#
There will be a progress bar under it which will show us the progress and an estimate of how much more time we might be needing to wait for complete mac os sierra reinstallation. Your screen will turn black with Apple logo on it. Step 6: Sit back and wait for the reinstall process to complete. If you use FileVault, then you might also need to click “unlock”. You’ll need to click continue to proceed. Choose the disk labelled “Macintosh HD” or the any other name that you had given to your disk. The system recovery will re-install the OS in this disk drive. Step 5: You will reach the screen where you’ll be asked to choose the Hard Disk drive for the mac OS sierra reinatall. Step 4: Click on the continue button and go through the setup screen and the options that it shows. Step 3: At the “macOS Utilities” screen choose “Reinstall macOS” Keep holding the COMMAND + R keys concurrently just as you hear the boot sound (this wil make our mac boot into the Recovery Mode) Step 1: Back up your Mac (just ensuring!) Once you’ve secured your files and system using time machine, now we’re ready for the steps to reinstall mac os sierra on macbook or any other machine running it. MAC users should utilize this amazing utility more often and regularly backup their machine and data. So that if something goes wrong just in case, we’ll still be able to restore our MAC via time machine easily. Although the process is safe, it’s still recommended to have a complete backup of your files. A clean install is different as it removes everything by erasing it and gives us a completely fresh machine with the latest mac os, just like it was factory reset or out of shop.Īlso note, that we need to backup our mac (or macbook) before starting the process. Please note, this tutorial is not for the clean install of mac os sierra. This approach will preserve your data, files, pictures, documents, apps, customisations, etc, while only reinstalling Mac OS only.
It will simply do a reinstall of mac OS sierra 10.12 system software.
Our method will re-install macos sierra without erasing the data or formatting your MAC hard disk. This can either be done as a troubleshooting technique only or for any other reaons that require them to reinstall Sierra as well.
Clean install macos sierra pro#
There might be some situations where Macbook or Macbook pro users may need to reinstall macOS Sierra.
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