MacBook (Late 2008 Aluminium, or Early 2009 or newer)ī) Back up important data and settings (photos, videos, music files, documents and the like) on your Mac to an external hard drive.Supported OS X Yosemite devices and first stepsĪ) Ensure your Mac is compatible with OS X Yosemite. Apple macOS Sierra: How to reinstall the Mac operating systemīefore we begin the detailed process of clean installing OS X Yosemite on Macs, there are a few things you'll need to do first. Beam me up: Nasa to use lasers for next-generation 'broadband internet' speeds in space.What is wireless charging and how does it work?.
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