Have a specific issue with your Yosemite DMG? Leave a comment below (or consult Apple’s official forums). This guide is updated as of 2026 for accuracy.
: This will install an app named "Install OS X Yosemite" into your Applications folder. It does not install the OS yet; it only prepares the installer. 3. Start the Installation Open your Applications folder. mac os x yosemite 1010 5 download dmg link