It appears that, as usual, the latest version of the iWork applications can open files edited in older versions, but the pre-Yosemite versions will not be able to open files edited in the Yosemite versions. I will want to edit these documents on the new Macbook too. I have an iMac and older Mac Pro, both running Mavericks, and I use Pages and Numbers for a lot of documents, via iCloud. I have just ordered a new Macbook Air, which will inevitably come pre-installed with Yosemite (I wanted to get it before Yosemite was released, but didn't have enough money until today) I want to do the same thing and here's why. This should restore the version of OS X originally pre-installed on the computer. I suggest using Ethernet if possible because it is three times faster than wireless. Note : You will need an active Internet connection. Be sure to select the correct drive to use if you have more than one.
Mavericks : Select Reinstall Lion/Mountain Lion, Mavericks and click on the Install button.
#How to install os x yosemite on hard drive mac os
Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed. Click on the Options button, set the partition scheme to GUID then click on the OK button.
Click on the Partition tab in the DU main window.
Wait patiently - 15-20 minutes - until the Recovery main menu appears. Restart the computer and after the chime press and hold down the COMMAND-OPTION- R keys until a globe appears on the screen. Install Mavericks, Lion/Mountain Lion Using Internet Recoveryīe sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
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