Jul 03, 2012 The Mac is 'smarter' than the PC in that there is no easy way for a PC to use a Mac formatted HFS+ drive. But it is VERY easy to get a Mac to use and understand an NTFS formatted drive. Sep 06, 2019 Use a Mac OS X installation Disc. If you’re unable to use Internet Recovery Mode or create a bootable USB installer, you can still use a Mac OS X installation disc. These discs are available for OS X Snow Leopard, OS X Lion, and OS X Mountain Lion. If your Mac is from 2012 or earlier, there was an installation disc in the original box.
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
Upgrade to the latest macOS that is compatible with your Mac. Create a bootable disk drive mac os.
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.
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 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
When you upgrade to macOS Catalina, you get more of everything you love about Mac. Experience dedicated apps for music, TV and podcasts. Smart new features in the apps you use every day. And Sidecar, which lets you use iPad as a second Mac display. Best of all, upgrading is free and easy.
Chances are, your Mac can run macOS Catalina.
Mac computers with Metal-capable graphics processors (GPUs) can upgrade to macOS Catalina.
Make sure you’re ready to upgrade.
Google drive mac os x preserve executable free. Before you upgrade, we recommend that you back up your Mac. Then, if your Mac is running OS X Mavericks 10.9 or later, you can upgrade directly to macOS Catalina.
Upgrading is free. And easier than you think.Upgrading from macOS Mojave?
Go to Software Update in System Preferences to find the macOS Catalina upgrade. Click Upgrade Now and follow the onscreen instructions to begin your upgrade. If you don’t have broadband access, you can upgrade your Mac at any Apple Store.
Upgrading from an older version of macOS?
If you’re running High Sierra (10.13), Sierra (10.12) or El Capitan (10.11), upgrade to macOS Catalina from the App Store. If you’re running Lion (10.7) or Mountain Lion (10.8), you will need to upgrade to El Capitan (10.11) first. If you don’t have broadband access, you can upgrade your Mac at any Apple Store.
For details about your Mac model, click the Apple icon at the top left of your screen and choose About This Mac. These Mac models are compatible with macOS Catalina:
Siri
Requires a broadband internet connection and microphone (built-in or external).
Hey Siri
Supported by the following Mac models:
Dictation, Voice Control and Voice Memos
Requires a microphone (built-in or external).
Spotlight Suggestions
Requires a broadband internet connection.
Gestures
Requires a Multi-Touch trackpad, Force Touch trackpad, Magic Trackpad or Magic Mouse.
Force Touch gestures require a Force Touch trackpad.
VoiceOver gestures require a Multi-Touch trackpad, Force Touch trackpad or Magic Trackpad.
Photo Booth
Requires a FaceTime or iSight camera (built-in or external), or USB video class (UVC) camera.
FaceTime
Audio calls require a microphone (built-in or external) and a broadband internet connection.
Video calls require a built-in FaceTime camera, an iSight camera (built-in or external) or a USB video class (UVC) camera; and a broadband internet connection.
Apple TV
High Dynamic Range (HDR) video playback is supported by the following Mac models:
Dolby Atmos soundtrack playback is supported by the following Mac models:
Sidecar
Supported by the following Mac models:
Supported by all iPad models with Apple Pencil support:
Continuity Camera
Requires an iPhone or iPad with a Lightning connector and iOS 12 or later or iPadOS.
Continuity Sketch and Continuity Markup
Requires an iPhone with iOS 13 or an iPad with iPadOS.
Handoff
Requires an iPhone or iPad with a Lightning connector and iOS 8 or later or iPadOS.
![]() Instant Hotspot
Requires an iPhone or iPad with mobile connectivity, a Lightning connector and iOS 8.1 or later or iPadOS. Requires Personal Hotspot service through your carrier.
Universal Clipboard
Requires an iPhone or iPad with a Lightning connector and iOS 10 or later or iPadOS.
Auto Unlock
Supported by Mac models introduced in mid-2013 or later.
Requires an Apple Watch with watchOS 3 or later, and an iPhone 5 or later.
Approve with Apple Watch
Supported by Mac models introduced in mid-2013 or later. Mac os change hard drive icon.
Requires an Apple Watch with watchOS 6 or later, and an iPhone 6s or later with iOS 13.
Apple Pay on the Web
Requires MacBook Pro with Touch Bar, an iPhone 6 or later with iOS 10 or later, or an Apple Watch with watchOS 3 or later.
Phone Calling
Requires an iPhone with iOS 8 or later, and an activated carrier plan.
SMS
Requires an iPhone with iOS 8.1 or later, and an activated carrier plan.
Home
Requires an iPhone with iOS 12 or later and a configured Home app.
AirDrop
AirDrop to iOS and iPadOS devices requires an iPhone or iPad with a Lightning connector and iOS 7 or later or iPadOS.
AirPlay
AirPlay Mirroring requires an Apple TV (2nd generation or later).
AirPlay for web video requires an Apple TV (2nd generation or later).
Peer-to-peer AirPlay requires a Mac (2012 or later) and an Apple TV (3rd generation Rev. A, model A1469 or later) with Apple TV software 7.0 or later.
Time Machine
Requires an external storage device (sold separately).
Power Nap
Supported by the following Mac models:
Upgrade Mac Os Without Reformatting Drive DownloadBoot Camp
Allows Boot Camp installations of Windows 10 on supported Mac models.
Exchange Support
Requires Microsoft Office 365, Exchange 2016, Exchange 2013 or Exchange Server 2010. Installing the latest service packs is recommended.
Windows Migration
Supports OS X 10.7 or later and Windows 7 or later. Reformat mac drive for pc.
App Store
Available only to persons aged 13 or older in the US and many other countries and regions.
Reformat Mac Pro
Upgrade Mac Os Without Reformatting Drive Windows 7
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