Though you can install Mavericks (OS X 10.9) directly from your Mac's hard drive, a bootable installer drive can be more convenient for installing the OS onto multiple Macs. And if your Mac is experiencing problems, a bootable installer makes a handy emergency drive. We walk you through the process of creating such a drive, step-by-step.

Faux écrans de mises à jour Windows, affichable dans un navigateur web (penser à passer en mode plein écran)