Reinstall from macOS Recovery
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 , which is also available in macOS Recovery.
1. Start up from macOS Recovery
To start up from macOS Recovery, turn on your Mac and immediately press and hold one of the following sets of keys on your keyboard. Release the keys when you see an Apple logo, spinning globe, or other startup screen.
If you need to purchase Mac OS X 10.7 Lion, you may order it from this page. The most current version of OS X is OS X 10.9 Mavericks. To learn more, please click here. Program that manages wifi for mac pro. What do you receive: An email with a content code for the Mac App Store. Note: Content codes are usually delivered within 1 business day but may occasionally take longer. Extract the OS X 10.8 Mountain Lion Retail VMware Image.7z file. Once you’ve done that, you will.
Dec 31, 2012 Add me to this complaint. Just tried to Mirror from my 2012 Macbook Air. When I'm already in Mirroring mode and click Apple TV for audio it takes me out of mirroring. When I try to choose the audio before I do into Mirroring mode it tosses me back to the internal speakers. I have been unable to direct audio to my TV - it just plays out of my. Aug 06, 2012 When I use airplay mirroring I can see the display on my TV but no audio. It works just fine if I airplay from itunes, just not when I have a quicktime movie playing and try to mirror my desktop. I even tried manually changing the output selection from internal speakers to Apple TV in audio preferences, but for some reason it wouldn't let me. Aug 18, 2020 Screen mirroring usually works over a WiFi connection and so you do not need Bluetooth enabled on your TV. Since Bluetooth is a wireless technology, it may cause interference with your connection. Turn the Bluetooth feature off on your TV and then try again. Use a Different Mirror App. Tv mirror samsung tv sound not working for mac free. Jan 26, 2016 In this piece, we’ll walk you through how to make sure your audio out is going to the right place. Problems that can arise. Over the weekend, I decided to sit back and watch some Star Wars movies using the new Samsung smart TV I got for Christmas, but when I connected my Mac to the TV and started to play my movie, the sound was all coming out of the TV instead of my Klipsch ProMedia. Make sure that your Samsung TV is on the same local network and same subnet as your Mac. The TV should not be in screen mirroring mode, but just on “TV” Mode or any HDMI IN port. After launching the app, you will see the app icon appearing in the top bar of your Mac and the app will look for your TV.
Command (⌘)-R
Turing machine for a^nb^nc^n. Reinstall the latest macOS that was installed on your Mac (recommended).
Option-⌘-R
Upgrade to the latest macOS that is compatible with your Mac.
Shift-Option-⌘-R
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Reinstall the macOS that came with your Mac, or the closest version still available.
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You might 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.
When you see the utilities window, you have started up from macOS Recovery.
2. Decide whether to erase (format) your disk
You probably don't need to erase, unless you're selling, trading in, or giving away your Mac, or you have an issue that requires you to erase. If you need to erase before installing macOS, select Disk Utility from the Utilities window, then click Continue. Learn more about when and how to erase.
3. Install macOS
When you're ready to reinstall macOS, choose Reinstall macOS from the Utilities window. Then click Continue and follow the onscreen instructions. You will be asked to choose a disk on which to install.
- If the installer asks to unlock your disk, enter the password you use to log in to your Mac.
- If the installer doesn't see your disk, or it says that it can't install on your computer or volume, you might need to erase your disk first.
- If the installer is for a different version of macOS than you expected, learn about macOS Recovery exceptions.
- If the installer offers you the choice between installing on Macintosh HD or Macintosh HD - Data, choose Macintosh HD.
Please allow installation to complete without putting your Mac to sleep or closing its lid. During installation, your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time.
If your Mac restarts to a setup assistant, but you're selling, trading in, or giving away your Mac, press Command-Q to quit the assistant without completing setup. Then click Shut Down. When the new owner starts up the Mac, they can use their own information to complete setup.
macOS Recovery exceptions
The version of macOS offered by macOS Recovery might vary in some cases:
- If macOS Sierra 10.12.4 or later has never been installed on this Mac, Option-Command-R installs the macOS that came with your Mac, or the closest version still available. And Shift-Option-Command-R isn't available.
- If you erased your entire disk instead of just the startup volume on that disk, macOS Recovery might offer only the macOS that came with your Mac, or the closest version still available. You can upgrade to a later version afterward.
- If your Mac has the Apple T2 Security Chip and you never installed a macOS update, Option-Command-R installs the latest macOS that was installed on your Mac.
- If you just had your Mac logic board replaced during a repair, macOS Recovery might offer only the latest macOS that is compatible with your Mac.
If you can't get macOS Recovery to offer the installer you want, you might be able to use one of the other ways to install macOS.
Other ways to install macOS
- You can also install macOS from the App Store or Software Update preferences. If you can't install macOS Catalina, you might be able to install an earlier macOS, such as macOS Mojave, High Sierra, Sierra, El Capitan, or Yosemite.
- Or create a bootable installer disk, then use that disk to install macOS on your Mac or another Mac.