macOS Catalina gives you more of everything you love about Mac. Experience music, TV, and podcasts in three all-new Mac apps. Enjoy your favorite iPad apps now on your Mac. Extend your workspace and expand your creativity with iPad and Apple Pencil. And discover smart new features in the apps you use every day. Now you can take everything you do above and beyond.
Download the update from the App Store. Once the file has finished downloading, check your Applications folder for the 'Install OS X Mavericks' icon. Copy this installer to your other computers before going through the install process. The installer will delete itself after the install is finished. To be honest there are inly two ways to do it but either way a legitimate copy must be downloaded from the Mac App store at some point, so you can be sure to get a pristine safe copy of it. Since mavericks is free there really is no reason not to. Can I download Mavericks? Apple has released OS X 10.9 Mavericks, and somewhat surprisingly it is a free upgrade for all existing OS X users. If you’re using a Mac laptop or desktop from the last five years or so, you should be able to download OS X Mavericks for free just by visiting the Mac App Store.
Check compatibility
If you're using one of these computers with OS X Mavericks or later,* you can install macOS Catalina. Your Mac also needs at least 4GB of memory and 12.5GB of available storage space, or up to 18.5GB of storage space when upgrading from OS X Yosemite or earlier.
MacBook introduced in 2015 or later
MacBook Air introduced in 2012 or later
MacBook Pro introduced in 2012 or later
Mac mini introduced in 2012 or later
iMac introduced in 2012 or later
iMac Pro (all models)
Mac Pro introduced in 2013 or later
* To upgrade from Lion or Mountain Lion, first upgrade to El Capitan, then upgrade to Catalina. To find your macOS version, Mac model, memory, and storage space, choose About This Mac from the Apple menu . If your Mac isn't compatible with macOS Catalina, the installer will let you know. View the complete list of compatible computers.
Make a backup
Before installing any upgrade, it’s a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Learn how to back up your Mac.
Get connected
It takes time to download and install macOS, so make sure that you have a reliable Internet connection. If you're using a Mac notebook computer, plug it into AC power.
Download macOS Catalina
If you're using macOS Mojave, get macOS Catalina via Software Update: Choose Apple menu > System Preferences, then click Software Update.
Or use this link to open the macOS Catalina page on the App Store: Get macOS Catalina. Then click the Get button or iCloud download icon.
Begin installation
After downloading, the installer opens automatically.
Click Continue and follow the onscreen instructions. You might find it easiest to begin installation in the evening so that it can complete overnight, if needed.
If the installer asks for permission to install a helper tool, enter the administrator name and password that you use to log in to your Mac, then click Add Helper.
Allow installation to complete
Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart, show a progress bar, or show a blank screen several times as it installs both macOS and related updates to your Mac firmware.
Stay up to date
After installing macOS Catalina, you will be notified when updates to macOS Catalina are available. You can also use Software Update to check for updates: Choose Apple menu > System Preferences, then click Software Update.
Or get macOS Catalina automatically
If you're using OS X El Capitan v10.11.5 or later and your App Store preferences or Software Update preferences are set to download new updates when available, macOS Catalina will download conveniently in the background, making it even easier to upgrade. A notification will inform you when macOS Catalina is ready to be installed. Click Install to get started, or dismiss the notification to install later. When you're ready to install, just open the file named Install macOS Catalina from your Applications folder.
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Learn more
- If the installer shows a list of apps that are not optimized for your Mac, learn about 32-bit app compatibility, then choose whether to proceed with the installation.
- For the strongest security and latest features, upgrade to macOS Catalina. If you have hardware or software that isn't compatible with Catalina, you might be able to install an earlier macOS, such as Mojave, High Sierra, Sierra, or El Capitan.
- You can also use macOS Recovery to reinstall macOS.
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The General tab of the OS X Mavericks Security & Privacy System Preferences pane offers several options that can help keep your data safe. They are
Change Password: Click this button to change the password for your user account.
Require Password after Sleep or Screen Saver Begins: Enable this option if you want your Mac to lock itself up and require a password after the screen saver kicks in or it goes to sleep. It can become a pain in the butt, having to type your password all the time.
But if you have nosy coworkers, family members, or other individuals you’d like to keep from rooting around in your stuff, you should probably enable this option.
When enabled, this option offers a pop-up menu that lets you specify how long after sleep or screen saver this password protection should kick in. The options range from immediately to four hours.
Show a Message When the Screen Is Locked: Type the message you want on your screen when it’s locked in this text entry box.
Disable Automatic Login: One of the login options in the Users & Groups System Preferences pane is automatic login. With automatic login enabled, you don’t have to choose an account or type a password when you start up this Mac. Instead, it bypasses all that login stuff and goes directly to the Desktop of the designated account.
If you want to disable this feature for all accounts — so that every user of this Mac sees the login screen and is required to choose an account and type a password — you should enable this option.
Allow Apps Downloaded from:
Last, but certainly not least (at least with regard to the General tab), is a feature called Gatekeeper, which helps protect you from downloading and running malicious software by limiting the applications your Mac can run.
You have three mutually exclusive options —Mac App Store, Mac App Store and Identified Developers, or Anywhere. Click the radio button next to the level of protection you desire and the other two options are automatically deselected.
Here’s what they do:
Mac App Store: This option allows you to run only apps you download from the Mac App Store. It’s the safest and most restrictive setting.
Mac App Store and Identified Developers: Apple offers a Developer ID program to certified members of the Mac Developers Program. Apple gives them a unique Developer ID, which allows Gatekeeper to verify that their app is not known malware and that it hasn’t been tampered with. If an app doesn’t have a Developer ID associated with it, Gatekeeper can let you know before you install it.
This is probably the best choice for most users. It allows third-party apps from Apple-vetted vendors, such as Microsoft, Adobe, and thousands more. It’s a lot less restrictive than the Mac App Store option and a lot safer than choosing Anywhere.
Anywhere: What its name suggests; this option lets you run any app, no matter where it came from.
Finally, the Privacy tab of the Security & Privacy System Preferences pane has several potentially useful options:
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To Enable or Disable Location Services: Click Location Services on the left and you’ll see a list of apps that are allowed to use your computer’s current location. Check or uncheck these apps to enable/disable their use of Location Services.
To Enable or Disable Other Apps Access to your Contacts, Calendars, and Reminders: ClickContacts, Calendars, or Reminders in the list on the left and apps with access to their contents will appear on the right.Check or uncheck the checkbox for each app to enable/disable its permission to access Contacts, Calendars, or Reminders.
To Enable or Disable Apps Allowed to Control Your Computer: Click Accessibility in the list on the left, and apps allowed to control your computer appear on the right.Check or uncheck the check box for each app to enable/disable its permission to control your computer.
To Automatically Send Anonymous Diagnostic & Usage Data to Apple: Click Diagnostics and Usage in the list on the left and then select the Send Diagnostic & Usage Data to Apple check box.
This sends details of system crashes, apps that quit unexpectedly, freezes, or kernel panics (anonymously) to the mothership in Cupertino, Apple’s world HQ, where engineers pore over the data and issue software updates to eliminate the bugs.
At least that’s the theory. . . .
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And that’s all you need to know about security and privacy (or at least enough to make you dangerous).