In this video I show you how to reinstall MAC OS X on your apple computer. This method should work on all apple computers and with all recent versions of MAC. If your Mac is using an earlier version of any Mac operating system, you should install the latest Apple software updates, which can include important security updates and updates for the apps that are installed by macOS, such as Safari, Books, Messages, Mail, Music, Calendar, and Photos. While it is possible to install Windows on your Mac without an other operating system, you would need to install the 'Boot Camp Support Software' after installing Windows. In your case, it would be best to first start with the OS X that was originally shipped with your Mac, then install Windows. The steps are outlined below.
Is your Mac up to date with the latest version of the Mac operating system? Is it using the version required by some product that you want to use with your Mac? Which versions are earlier (older) or later (newer, more recent)? To find out, learn which version is installed now.
If your macOS isn't up to date, you may be able to update to a later version. Excel2plist 3 1 0 download free.
Which macOS version is installed?
From the Apple menu in the corner of your screen, choose About This Mac. You should see the macOS name, such as macOS Big Sur, followed by its version number. If you need to know the build number as well, click the version number to see it.
Which macOS version is the latest?
Macbook No Os
These are all Mac operating systems, starting with the most recent. When a major new macOS is released, it gets a new name, such as macOS Big Sur. As updates that change the macOS version number become available, this article is updated to show the latest version of that macOS.
If your Mac is using an earlier version of any Mac operating system, you should install the latest Apple software updates, which can include important security updates and updates for the apps that are installed by macOS, such as Safari, Books, Messages, Mail, Music, Calendar, and Photos.
macOS | Latest version |
---|---|
macOS Big Sur | 11.2.2 |
macOS Catalina | 10.15.7 |
macOS Mojave | 10.14.6 |
macOS High Sierra | 10.13.6 |
macOS Sierra | 10.12.6 |
OS X El Capitan | 10.11.6 |
OS X Yosemite | 10.10.5 |
OS X Mavericks | 10.9.5 |
OS X Mountain Lion | 10.8.5 |
OS X Lion | 10.7.5 |
Mac OS X Snow Leopard | 10.6.8 |
Mac OS X Leopard | 10.5.8 |
Mac OS X Tiger | 10.4.11 |
Mac OS X Panther | 10.3.9 |
Mac OS X Jaguar | 10.2.8 |
Mac OS X Puma | 10.1.5 |
Mac OS X Cheetah | 10.0.4 |
This article only applies to Mac computers with an Intel processor.
macOS Recovery is part of the built-in recovery system of your Mac. You can start up from macOS Recovery and use its utilities to recover from certain software issues or take other actions on your Mac.
How to start up from macOS Recovery
Turn on your Mac and press and hold these two keys immediately: Command (⌘) and R. Release the keys when you see an Apple logo, spinning globe or another startup screen. Need help?
You may be prompted to enter a password, such as a firmware password or the password of a user who is an administrator of this Mac. Enter the requested password to continue:
Startup is complete when you see the utilities window:
Restore from Time Machine: Restore your files from a Time Machine backup.
Reinstall macOS:Download and reinstall the Mac operating system.
Safari (or Get Help Online):Use Safari to browse the web and find help for your Mac. Links to Apple's support website are included. Browser plug-ins and extensions are disabled.
Macbook No Os 10.8
Disk Utility:Use Disk Utility to repair your disk or erase your disk or another storage device.
Additional utilities are available from the Utilities menu in the menu bar, including Startup Security Utility (or Firmware Password Utility), and Terminal.
To quit macOS Recovery, choose Restart or Shut Down from the Apple menu . If you want to choose a different startup disk before quitting, choose Startup Disk from the Apple menu.
If you can't start up from macOS Recovery
If your Mac can't start up from its built-in macOS Recovery system, it may try to start up from macOS Recovery over the Internet. When that happens, you will see a spinning globe instead of an Apple logo during startup:
To start up from Internet Recovery manually, press and hold either of these key combinations at startup:
- Option-Command-R
- Shift-Option-Command-R
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If startup from Internet Recovery has been unsuccessful, you will see a globe with an alert symbol (exclamation mark):
If you see the globe and alert symbol, try these solutions:
- Make sure your Mac can connect to the Internet. If you aren’t prompted to choose a Wi-Fi network during startup, choose a network from the Wi-Fi menu , if available.
- Press Command-R at startup to try using the built-in Recovery system instead of Internet Recovery.
- Connect to the Internet using Ethernet instead of Wi-Fi, or vice versa.
- Connect to the Internet from a different Wi-Fi or Ethernet network. Your network configuration may not allow the Internet access that macOS Recovery needs.
- Try again later, because it may be a temporary issue.
- Start up from another disk or volume, if available, or use a bootable installer to reinstall macOS.
If you still need help, please contact Apple Support.