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Marcel Barrera
Marcel Barrera

Download Yosemite DMG Installer OS X 10.10: A Complete Guide


How to Download Yosemite DMG Installer OS X 10.10 Without Apple Store




Yosemite is one of the older versions of Mac OS X that was released in 2014. It introduced many new features and improvements, such as Continuity, iCloud Drive, Spotlight, Safari, Mail, Photos, and more. If you have an older Mac that is compatible with Yosemite, you might want to download and install it for various reasons. For example, you might want to downgrade from a newer version of macOS that is causing problems, or you might want to run some apps or games that are not compatible with newer versions of macOS.




download yosemite dmg installer os x 10.10 without apple store



However, downloading Yosemite from the Mac App Store is not possible anymore, as Apple has removed it from the store. So how can you get Yosemite without using the Mac App Store? One way is to create a bootable USB installer for Yosemite and use it to install Yosemite on your Mac. A bootable USB installer is a USB drive that contains the macOS installation files and can be used as a startup disk.


Installing Mac OS X from a USB drive has some advantages and disadvantages. Some of the advantages are:



  • You can install macOS on multiple Macs without downloading the installer each time.



  • You can install macOS on a Mac that does not have an internet connection or has a slow internet connection.



  • You can perform a clean install of macOS, which means erasing everything on your Mac and starting fresh.



  • You can have a backup of macOS in case something goes wrong with your Mac or you need to reinstall macOS.



Some of the disadvantages are:



  • You need an extra USB drive with at least 14GB of available storage, formatted as Mac OS Extended.



  • You need to download the macOS installation file, which can be large and take some time.



  • You need to use some advanced tools or commands, such as Disk Utility or Terminal, which can be confusing or intimidating for some users.



  • You need to be careful not to erase or damage your Mac or your USB drive during the process.



In this article, we will show you how to download Yosemite DMG file without using the Mac App Store, how to create a bootable USB installer for Yosemite, and how to install Yosemite from a USB drive. We will provide two options for each step, so you can choose the one that suits you best. Let's get started!


How to Download Yosemite DMG File


installer will ask you to choose a destination for installing Yosemite. Choose your Applications folder and click on "Install".


  • The installer will copy the Yosemite installation files to your Applications folder and create a file named "Install OS X Yosemite.app". This is the file that you will use to create a bootable USB installer for Yosemite.



How to Create a Bootable USB Installer for Yosemite




To create a bootable USB installer for Yosemite, you have two options: use DiskMaker X or use Terminal. Both options will require you to have a USB drive with at least 14GB of available storage, formatted as Mac OS Extended. Here are the steps for each option:


How to download macOS from Apple Support[^1^]


Mac OS X 10.10 Yosemite DMG File from Archive.org[^2^]


How to make a bootable OS X 10.10 Yosemite install drive from Macworld[^3^]


Download Yosemite installer from Mac App Store


Install OS X Yosemite.app in Applications folder


Use HFS Explorer or MacDrive 10 to read .dmg file on Windows


Connect a USB drive to your Mac for installation


Double-click the .pkg file to install the macOS installer


Open the macOS installer and follow the onscreen instructions


Use Software Update to upgrade your Mac to the latest macOS


Download a disk image (.dmg) file for Yosemite


Use macOS Recovery or a bootable installer to update or upgrade macOS


Check the compatibility of your Mac with Yosemite


Back up your Mac before installing Yosemite


Avoid putting your Mac to sleep or closing its lid while installing


Use Safari to download Yosemite from Apple Support or Archive.org


Free up storage space if you need more space to download or install Yosemite


Learn what to do if you get an error message while downloading, preparing, or installing Yosemite


Use the Korea Superconducting Tokamak Advanced Research (KSTAR) facility (Korea Institute of Fusion Energy) to create a mini Sun with nuclear fusion[^4^]


Use the Get button in the App Store to begin downloading Yosemite


Download and install current or previous versions of macOS


Maintain your Mac's security, stability, and compatibility with macOS updates and upgrades


Download and install the latest features and built-in apps for macOS


See the .pkg file within the .dmg file for Yosemite


Use a program like HFS Explorer or MacDrive 10 to read HFS+ file system on Windows


Make a bootable OS X 10.10 Yosemite install drive with DiskMaker X or Disk Utility


Use the Install [Version Name] app in your Applications folder to install Yosemite


Restart your Mac and see a progress bar or blank screen several times while installing Yosemite


Use Software Update to show only upgrades that are compatible with your Mac


Download Yosemite faster and easier with Software Update than with other methods


Option 1: Use DiskMaker X




This option is the easiest and fastest way to create a bootable USB installer for Yosemite. DiskMaker X is a free app that automates the process of creating a bootable USB installer for any version of Mac OS X from 10.7 to 10.14. Here are the steps:



  • Go to and download DiskMaker X 5, which is the version compatible with Yosemite.



  • Open the downloaded file and drag the DiskMaker X app to your Applications folder.



  • Launch DiskMaker X and choose "Yosemite (10.10)" from the list of available versions of Mac OS X.



  • The app will automatically detect the "Install OS X Yosemite.app" file in your Applications folder. Click on "Use this copy" to confirm.



  • The app will ask you to choose a disk type for creating the bootable USB installer. Choose "An 8GB USB thumb drive" and click on "Choose this disk".



  • The app will ask you to select your USB drive from the list of available drives. Choose your USB drive and click on "Choose this disk".



  • The app will warn you that your USB drive will be erased and formatted as Mac OS Extended. Click on "Erase then create the disk" to proceed.



  • The app will ask you for your administrator password. Enter it and click on "OK".



  • The app will start creating the bootable USB installer for Yosemite. This might take some time depending on the speed of your USB drive and your Mac.



  • Once the process is complete, you will see a message saying "Your OS X Startup Disk is ready". Click on "Quit" to exit the app.



Option 2: Use Terminal




This option is the more advanced and manual way to create a bootable USB installer for Yosemite. Terminal is a built-in app that allows you to execute commands on your Mac. You need to be careful when using Terminal, as you might accidentally erase or damage your Mac or your USB drive if you enter the wrong command. Here are the steps:



  • Open Disk Utility, which is located in Applications > Utilities.



  • Select your USB drive from the sidebar and click on "Erase".



  • Choose "Mac OS Extended (Journaled)" as the format and name your USB drive as "Untitled". Click on "Erase".



  • Once the formatting is done, close Disk Utility and open Terminal, which is also located in Applications > Utilities.



  • Type or paste the following command in Terminal and press Enter: sudo /Applications/Install\ OS\ X\ Yosemite.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install\ OS\ X\ Yosemite.app --nointeraction



  • The command will ask you for your administrator password. Enter it and press Enter. You will not see any feedback as you type your password.



  • The command will start creating the bootable USB installer for Yosemite. This might take some time depending on the speed of your USB drive and your Mac.



  • Once the process is complete, you will see a message saying "Done." You can close Terminal and eject your USB drive.



How to Install Yosemite from a USB Drive




To install Yosemite from a USB drive, you have two options: use Startup Manager or use macOS Recovery. Both options will require you to restart your Mac and hold down some keys during startup. Here are the steps for each option:


Option 1: Use Startup Manager




This option is the simpler and quicker way to install Yosemite from a USB drive. Startup Manager is a built-in feature that allows you to choose a startup disk from a list of available disks. Here are the steps:



  • Insert your bootable USB installer for Yosemite into your Mac.



  • Restart your Mac and hold down the Option key (or Alt key) as soon as you hear the startup sound.



  • Release the Option key when you see a list of available startup disks on the screen.



  • Use the arrow keys to select your bootable USB installer for Yosemite and press Enter.



  • Your Mac will boot from the USB drive and you will see the macOS Utilities window. Choose "Install OS X" and click on "Continue".



  • Follow the onscreen instructions to install Yosemite on your Mac. You can choose to upgrade your existing macOS or perform a clean install by erasing your Mac's hard drive.



Option 2: Use macOS Recovery




This option is the more advanced and flexible way to install Yosemite from a USB drive. macOS Recovery is a built-in feature that allows you to access various tools and options for


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