
In the Applications folder and the createinstallmedia command in the Terminal app. It is also possible to create a bootable USB installer disk using the Install OS X Yosemite.app If you need it in future, or you could just make a copy of the Install OS X Yosemite.app prior to installing and moving it toĪn external drive for safe keeping.

The copy of the install app self deletes after installing Yosemite, so make sure you keep a copy of the InstallMacOSX.dmg To start the installation of Yosemite double click on the Install OS X Yosemite.app. You want to eventually install Yosemite on, that is for later.) The disk that you are booted to at the time. (If the installation window asks which disk you want to install to, you must pick You will find in your Applications folder. That and an installation window will open, this does not install Yosemiteīut converts the InstallMacOSX.pkg to the Install OS X Yosemite.app which When downloaded open to InstallMacOSX.pkg, double-click on The next section can only be done on a mac that is capable of running Yosemite,Ī mac that came preinstalled with an OS later than Yosemite will refuse to do the next bit. This downloads InstallMacOSX.dmg to your Downloads folder. Go to Section 4 and click on Download OS X Yosemite. With El Capitan if you want to install El Capitan. Here are the instructions for Yosemite, the instructions for El Capitan are the same just replace Yosemite How to upgrade to OS X El Capitan – Apple Support How to upgrade to OS X Yosemite – Apple Support Select Software Update.Your mac can install Mac OS X Yosemite 10.10 or El Capitan 10.11.Information and have the option to transfer data from another computer Once the installation is complete, you'll be asked to enter basic Install and enter your Apple ID information if prompted. The instructions and then choose your hard disk. Click Reinstall OS X, and then Continue.Options., adjust the slider accordingly, and click If you would like to securely erase your data, click Security.Next to "Format:", make sure Mac OS Extended (Journaled).In Disk Utility, from the left column, click your hard.Restart your computer, and immediately hold down command-r until the gray Apple logo appears. Reinstalling while erasing everything on your computer

from the Apple menu, and install any available updates.
