Where to get Yosemite 10.10 .dmg file ...

BACKGROUND: I periodically reformat and partition the hard drive on my iMac ... followed by reinstalling OS X and software.

QUESTION: Where can I get the .dmg file for Mac OS X Yosemite 10.10 so I can reinstall Yosemite from an external hard drive where 10.10 will be located. I do have the .dmg for 10.10.1 but this is an update. My understanding is that I have to have 10.10 installed in order to apply the update so using 10.10.1 to reinstall Mac OS X Yosemite is not an option.

Please don't ask WHY do you want to do this.

Thank you for your help.

J. Minor

iMac (24-inch Early 2009), OS X Mountain Lion (10.8.5), 4GB RAM

Posted on Dec 17, 2014 4:14 AM

32 replies

Dec 7, 2015 12:21 PM in response to babowa

babowa wrote:

what you can do is have them download it for you and, when the download is complete, dismiss the installer.

Brilliant, I'll ask them to do that.

rccharles

Level 6

13,037 points

Mar 16, 2017 12:34 PM in response to James Minor

If you into this sort of sillyness, you could make a clone of your macOS then refresh from the clone.

Yosemite should still be in your App Store downloads.

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Where to get Yosemite 10.10 .dmg file ...