Yosemite 10.10 Download Dmg !!top!! -

Wait for the process to finish. You will see Copy complete. and Done.

: Ensure your Mac is compatible with Yosemite (generally models from 2007–2014). yosemite 10.10 download dmg

You typically do not need a .dmg to install macOS. The .app is the installer, and the USB drive method above replaces the need for a bootable DMG file. Wait for the process to finish