They process was simple, easy, and no-hassle at all. During installation, your Mac may restart, or display a blank screen for a short time. The Apple Mac OS X Lion Thumb Drive was incredible simple to use.It also includes Gatekeeper, a new security feature that helps you keep your Mac safe from malicious software by giving you more control over what apps are installed on your Mac.
Macbook pro mac os x lion 10.7.5 update#
Macbook pro mac os x lion 10.7.5 install#
Do not close the lid or power off your Mac until installation is complete.Īfter you've gone through the preparation steps, you need to download and install the latest version of macOS. During installation, your Mac may restart, or display a blank screen short time.When this process is complete, an installer application named Install OS X El Capitan is placed in your Applications folder.Follow the on-screen instructions to perform a compatibility check, and prepare for installation.In the archive, double-click InstallMacOSX.pkg.Double-click the downloaded archive, InstallMacOSX.dmg, to view its contents.The file size is 5.8 GB, so the download may take a while, depending on the speed of your Internet connection. Download the El Capitan installer from Apple.If your Mac is running OS X Lion or Mountain Lion, follow these steps to upgrade to El Capitan. If your Mac is running Mavericks or newer, you can proceed to upgrade to Catalina. * If your Mac is running OS X Lion or Mountain Lion, you must upgrade to El Capitan before you can upgrade to Catalina. The following versions of OS X and macOS can be upgraded to macOS Catalina. If anything goes wrong, you can restore your Mac to its previous state. Back up your dataĪlthough not required, we strongly recommend you back up your Mac before proceeding with an upgrade. Can incompatible Macs be 'hacked' or upgraded to run Mac OS X 10.7 'Lion' Apple formally notes that Mac OS X 10.7 'Lion' is compatible with 'an Intel-based Mac with a Core 2 Duo, i3, i5, i7 or Xeon processor and at least 2 GB of RAM.' It needs to be running Mac OS X 10.6.6 (or higher, 10.6.8 is recommended) 'Snow Leopard' as well. However, you can still try to upgrade to El Capitan. If your Mac is not on this list, you cannot upgrade to Catalina.