Mavericks (OS X 10.9) doesn’t ship on a disc. Instead, it’s available only as an installer app downloadable from the Mac App Store, and that installer doesn’t ...

Formatting a hard drive along with the install of a new OS is the best option. The vast majority of operating system installations provide a "format" option as part of the installation process.

Qubes OS is a free open-source operating system that’s fully security-oriented. It leverages Xen-based virtualization, which allows the user to create, use and delete easily isolated compartments ...