Backup any files that may be stored on it.
(Try it if that is not the case skip past this section and look at the next one.) I have not tested Apple's claims, to see whether it can be used successfully with prior versions. That being said, this option is only aimed at those whose Macs are already running the latest iteration of the Mac operating system, according to the support page. It is not very detailed (which is where the following steps come in), but is to be preferred over dedicated, third-party tools as it is properly tested. Please verify it is there before proceeding any further.Īpple has created a support page that explains, in large, how to create a bootable USB drive with the OS X 10.9 Mavericks setup file on board. You will then have an app called Install OS X Mavericks in your Applications folder.
When the download completes, do not carry on with the install. You can either search for it in the app or access its respective location using this link. No matter the method described below, you will have to download the OS X 10.9 Mavericks setup file from the App Store to create the bootable USB drive.