: Double-click the downloaded InstallMacOSX.dmg file to open it.
Once you have successfully downloaded the file, you need to prepare an installation drive. A bootable USB is essential if you are doing a clean install on an older Mac with a blank hard drive. mac os x yosemite 10.10 5 download dmg
Because Apple’s official certificates for Yosemite expired in 2019, even the official installer requires a date trick to run. The largest verified repository for the is the Internet Archive. : Double-click the downloaded InstallMacOSX
Paste the following command exactly as written. This command instructs Apple’s software update catalog to download the final version of Yosemite. mac os x yosemite 10.10 5 download dmg