fertcats.blogg.se - Install macos sierra

#Install macos sierra how to#
#Install macos sierra install#
#Install macos sierra software#
#Install macos sierra download#

#Install macos sierra install#

The Catalina install files will start to download.

Would you like to continue?’ Click Continue.

You may get a warning message at this point, telling you that this version of macOS ‘is already installed on this computer.

#Install macos sierra download#

Hit Download or Get (depending on the version of the Mac App Store you are using).Once you have located the version of macOS you want on the Mac App Store follow these instructions: Alternatively open Mac App Store and search for the version you want. Here’s a link to Monterey on the Mac App Store (or Big Sur or Catalina). If, on the other hand, you want to reinstall Monterey and are already running Monterey the best way to access the installer for Monterey is via the Mac App Store. If you are currently running Monterey and want to do a clean install of macOS Ventura then you can download the installation package via System Preferences. If you’re reinstalling the latest version of macOS, or installing a new version of macOS, the next step is relatively easy although the process for obtaining the installer will be different. Option 2: Do a clean install via Recovery Once your Mac restarts you can go through the steps to set it up as new, or you can leave it at this stage for the next owner to set up.Eventually you will see a black screen while it restarts. Having clicked the second Erase All Content & Settings your Mac will restart.Before your Mac is erased you receive a final warning, so if you have second thoughts at least you can stop at this point!.Finally you will need to log out of your Mac and all related services using your Apple ID.A window will show you what will be deleted, including Apple ID, Touch ID, accessories, and Find My settings.(You’ll be reminded to do a backup with Time Machine before you begin deletion – but you can skip that step.).Click on Erase All Content and Settings.Click on System Preferences in the menu bar at the top of your screen.If you have the Erase All Content and Settings option in Monterey then you can easily wipe your system, remove all your data and user-installed applications and start from scratch. These Intel Macs have the T2 security chip:

#Install macos sierra how to#

Speaking of which, if an old version is what you’re looking for, it may be worth taking a look at another article where we focus on that entirely: How to download and install old versions of OS X on a Mac. There is also the even trickier business of installing a clean copy of an older version of macOS on your Mac (Monterey, Big Sur, Catalina, High Sierra, Sierra, El Capitan, Mojave, Yosemite or an even old version of OS X). Not only are there three different methods (which we’ll run through below) the methods depend on the version of macOS that you are running.

Use the Erase All Content and Settings option setting in System Preferences (available if you are running macOS Monterey and later on a M1 or M2 Mac, or an Intel Mac with a T2 chip).

Use macOS Recovery to reinstall macOS the web.

Make a copy of the macOS installer on a USB stick, reformat your drive and then install the macOS on to your Mac from the installer.

Should this happen you will have to reinstall the system.Īs we explained above, there is more than one way to wipe your Mac and reinstall macOS: Should a problem occur with macOS during a restart, perhaps because a storage space on the SSD is defective and thus a system component is no longer intact, this will be recognised by the startup process since the seal will now be invalid.

#Install macos sierra software#

So macOS itself cannot be changed by any software that you install as a user. And snapshots cannot be changed, even by the system itself.

For further security, these Macs also do not start directly from the system volume, but from a snapshot of the system. This seal is stored either in the T2 chip of the newer Intel Macs or in the Secure Enclave of the Apple M1/M2.Įach component of the system is signed in hierarchical order, and any change to a component would also invalidate the seal that represents the top level.

Since macOS Big Sur, macOS has its home on its own volume, which is both read-only and cryptographically signed and sealed (referred to as a Sealed System Volume). In the past it was helpful to reinstall the system if you wanted to correct some Mac problems, but today this solution doesn’t make as much sense.