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Open this file and follow the onscreen instructions. macOS Sierra downloads as a disk image that contains a file named InstallOS.pkg.Enterprise administrators, please download from Apple, not a locally hosted software-update server. To get the required installer, download from a Mac that is using macOS Sierra 10.12.5 or later or El Capitan 10.11.6. If the installer opens after downloading, quit it without continuing installation. macOS Catalina, macOS Mojave, and macOS High Sierra download directly to your Applications folder as an app named Install macOS Catalina, Install macOS Mojave or Install macOS High Sierra.First, you have to download TransMac software for Windows and install it on your computer.įind the appropriate download link in the upgrade instructions for each macOS version: Create El Capitan Usb Installer From Dmg Windows 10 To create bootable USB installer for Mac to Install Mac OS X El Capitan on Windows, on Mac or VirtualBox, you have to create bootable USB flash drive. Create Bootable USB Installer for Mac OSX Using TransMac.It installs an app named Install OS X El Capitan.

OS X El Capitan downloads as a disk image that contains a file named InstallMacOSX.pkg. It installs an app named Install macOS Sierra into your Applications folder.First way, users can obviously download El Capitan OS X 10.11 App from Apple store, then locate where to get the InstallESD.DMG from the installer in Applications folder. DMG, then convert El Capitan.DMG to El Capitan.ISO (available solutions in both Mac OS X and Windows).The expanded dmg image contains the package 'InstallMacOSX.pkg' which should be run to create the El Capitan installer but fails with the following message 'This version of OS X 10.11 cannot be installed on this computer.' I have downloaded the El Capitan dmg file (InstallMacOSX.dmg) provided by Apple.You don't need a bootable installer to upgrade macOS or reinstall macOS, but it can be useful when you want to install on multiple computers without downloading the installer each time. These advanced steps are primarily for system administrators and others who are familiar with the command line.