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.

Command (⌘)-R

Reinstall the latest macOS that was installed on your Mac (recommended).

Option-⌘-R

Ask a friend/acquaintance at work/school who owns a mac to download the Mountain Lion installer from the app store and use it to create a bootable USB installer drive. You'll need to supply them with a USB drive (8Gb or larger), and possibly buy them a beverage of their choice to say thanks afterwards. Dec 14, 2014 Hi, I messed up when attempting to revert from Yosemite to Mountain Lion via internet recovery. Instead of re-formatting (if that is the right terminology) my macAir, I accidentally selected my external time machine hard drive (ouch). Oct 02, 2020 A mountain lion cub is on the mend after being rescued from one of California's devastating wildfires. The three-and-a-half pound animal was found Sunday by a firefighter in Shasta County amid. Boot Camp is Mountain Lion’s built-in technology that allows you to run Microsoft Windows Vista, or Windows 7 on any Intel-based Mac. If your Mac meets the following requirements, you can run Windows on your Mac (if you so desire): An Intel-based Mac (of course) At least 10GB of. Jun 16, 2020 Mountain Lion OS data recovery software. As powerful as it is, Mountain Lion OS does not come with comprehensive data recovery programs or tools. If you are using a Macintosh computer with Mountain Lion OS installed, you might also need a data recovery app that can help you to retrieve back deleted files and lost documents on your PC.

Upgrade to the latest macOS that is compatible with your Mac.

Shift-Option-⌘-R

Reinstall the macOS that came with your Mac, or the closest version still available.

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

Majesty for mac. 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.

Perform Mac Mountain Lion file recovery in 4 steps using the easy-to-use data recovery tool - Remo Recover Mac. Use the free trial edition of the software and restore all lost data now.

Restore Data on Mac Mountain Lion

Mac Mountain Lion operating system - Mac OS X version 10.9 named Mountain Lion is one of the major and latest operating systems for Mac machines. Mac Mountain Lion brought in abundant of new features and performance enhancements to make usage of applications like iCloud easier. It is easier to maintain all data like media, document files and other information in one place as well as available across all Apple devices. Social media access too is a lot easier in this advanced installation of Mac.

Mac Mountain Lion Data Recovery:

If you’ve lost any data from your Mac volume while trying to upgrade your Mac OS X to version 10.9 Mountain Lion or due to any other reason, there’s nothing much to panic about, as with Remo Recover Mac you can reliably perform Mac Mountain Lion data recovery in order to undelete all data including data from emptied Trash as well as recover all other data that is missing from your Mac volume. Remo Recover is so powerful that you can effortlessly perform Mountain Lion data recovery Mac to recover data from formatted / partitioned /reformatted /repartitioned volumes. It recovers data from HFS and HFS+ based Mac volumes. On addition to that, you can employ this free software to recover data from Mac Mountain Lion which is facing partitioning errors as a result of MBR corruptions on Mac 10.9 file systems.

Recovery For Mac Mountain Lion King

Some highlights of Remo Recover that makes it one of the best tool to perform Mac Mountain Lion data recovery:

• A highly secure and risk-free data recovery tool to retrieve data from Mac Mountain Lion
• Rigorously scans the entire volume quickly in order to recover deleted, lost, or inaccessible data on Mac volume
• Recognizes more that 300 file types to help you recover almost all types of data from any Mac volume
• Supports data recovery on Mac volumes as well as external Hard Disk Drives
• Perform Mac Mountain Lion data restore operation on the Mac volumes that fail to mount
• Remo Recover is compatible with other version of Mac OS X like Leopard, Snow Leopard, Lion, Mountain Lion and Mavericks

Important: Before beginning the data recovery process in your Mac, make sure you stop accessing the volume on which you intend to recover data.

Scenarios that can lead to data deletion on Mac computers:

• Accidental deleting of files / folders or deleting files from Trash
• Bugs in any program can corrupt or delete files relating to that application
• Antivirus tool can delete any files or folders if it encounters any suspicious threats in those files / folders
• Transferring files from one volume to another improperly can cause data deletions
• Power disruptions, system crashes and other similar actions while accessing any data
• Formatting the Mac volume due to any reason, with important files on that volume

Recovery For Mac Mountain Lion Download

Steps to Restore Data on Mac Mountain Lion using Remo Recover:

Step 1: Install and run Remo Recover for Mac on your computer and select the appropriate option.

Figure 1: Main Screen

Step 2: Further select the appropriate recovery option as shown in the screenshot.

Figure 2: Select Desired Option

Recovery For Mac Mountain Lion 10.8

Step 3: After that, select the Volume from where you wish to undelete data and click “Next” button to begin scanning process.

Figure 3: Select Volume