Oct 07, 2019 macOS Recovery makes it easy to reinstall the Mac operating system, even if you need to erase your startup disk first. All you need is a connection to the Internet. If a wireless network is available, you can choose it from the Wi-Fi menu in the menu bar. This menu is also available in macOS Recovery. $129.99 but not all older Macs running Mac OS 9 will be able to run the latest version of Mac OS X so check that what you get is compatible with your Mac. Quickly find which OS X versions are compatible with your Mac model and year. Guide includes OS X 10.7.x (Lion) through OS X 10.14.x (Mojave). MacOS High Sierra (version 10.13) is the fourteenth major release of macOS, Apple Inc.' S desktop operating system for Macintosh computers. It is the successor to macOS Sierra and it was announced at the WWDC 2017 on June 5, 2017 before being released on September 25, 2017; its successor macOS Mojave was released on September 24, 2018. The name 'High Sierra' refers to the High Sierra region. You don’t; Apple does not supply.iso images, because nearly all the supported hardware platforms lack CDROM or DVD drives. If you need an.iso, for example, to Run Mac OS X in VMWare on genuine Apple hardware, you will need to create it yourself.
Most of the time you'll never have to worry about having to install a new operating system on your Mac - the one that's on there should work fine through thick and thin. But every once in a while you might want or need to - here are step by step instructions for making it happen.
![What Is The Latest Os For Mac What Is The Latest Os For Mac](/uploads/1/2/6/1/126133231/999592512.png)
Use Recovery Mode
Every Mac operating system since Lion (OS X 10.7) has included Recovery Mode, a special boot partition that enables you to recover from catastrophic failures and problems. This can be used to install a fresh copy of Mavericks on your hard drive, provided you have Internet access. To use Recovery Mode, follow these instructions:
- Shut down your Mac.
- Press the Power button (the button marked with a O with a 1 through it)
- Immediately press the command (cloverleaf) key and R together.
- Make sure you're connected to the internet through Wi-Fi. If you're not, choose a network from the Wi-Fi menu that appears at the top-right corner of the screen.
- Select Install Mac OS X, then click Continue.
- Wait.
It's worth noting that this installs a fresh copy of OS X on your Mac without affecting either your files or your user settings, so you should be good to go as soon as it reboots. All applications are maintained, as well. This system simply replaces the core files that enable OS X to operate.
I've had occasion to see systems that don't work with Recovery Mode, for some reason. For those computers, it's often possible to restore access to the Recovery Mode partition by resetting the System Management Controller (SMC). To reset the SMC on most Macs:
- Shut down the Mac. If it's a laptop, make sure it's connected to the power cord.
- Hold down the Control, Option, and Left Shift keys simultaneously, then press the Power button.
- Release the keys.
- Press the Power button again. The system should turn on and you can give Recovery Mode another try.
If that fails to work, you can always download a fresh copy of the Mavericks installer from the Mac App Store.
Download a fresh copy of Mavericks from the Mac App Store
- Open the Mac App Store application, either from your Dock or from the Applications folder.
- Click on the Purchases tab at the top of the window or press command and 4 on your keyboard. (I'll assume for the moment that you have already installed Mavericks once - if you haven't, you should see an installation option in your Updates folder, assuming you have Snow Leopard or later installed.)
- Find OS X Mavericks in the list of files, either scrolling through the list or using the Search field in the upper right hand corner of the window.
- Click the Download button.
- You may get a dialog box advising you that OS X 10.9 is already installed on this computer. It's safe to click the Continue button.
- Be prepared to wait a while. Even over a fast Internet connection, it'll take a little while to download, since it's more than 5 GB.
- Once it's downloaded, it'll launch automatically. Follow the directions to install OS X.
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![What Is The Latest Os For Mac What Is The Latest Os For Mac](/uploads/1/2/6/1/126133231/798387038.jpg)
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Hopefully this will help you get started if you need to install a fresh copy of Mavericks. Questions? Fire away in the comments.
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