Step 7: Choose the Macintosh HD partition you erased in step 5 and then click Install.
Now click on Install OS X and then hit Continue. Step 6: When the erasing process is complete, return to the first screen where you selected Disk Utility. This will wipe all files stored on your startup hard drive. Leave all the settings at their default values and then hit Erase button at the bottom right. Step 5: Click on Macintosh HD from the left hand-side pane and then hit Erase tab on the top-right portion of the window. Step 4: Click on Disk Utility and then hit Continue. Reformat your USB drive using Disk Utility. (MAKE SURE THAT THE TITLE IS SET TO ‘Untitled’ AND THE FORMAT TO ‘Mac OS Extended (Journaled)’. This could take a few seconds or minutes. Prior to launch you can get it here, and post launch it will be available in the App Store. Steps to create bootable OS X Yosemite USB: Connect your USB drive with Mac. Step 3: Wait until the Yosemite installer appears on screen. Step 2: Choose the USB drive on the start-up drive selection screen and hit Enter/Return on the keyboard. As soon as the start-up chime plays, press the Option key (Alt). Step 1: Ensure the bootable USB flash drive is plugged into your Mac and restart the computer.
How to Clean Install OS X Yosemite on Your Mac The OS X Yosemite bootable USB flash drive will be ready for use and you can start the clean installation process. Once the process completes, you will see the message " Copy Complete. Do not interrupt the Terminal or eject the flash drive during the process. These are the defaults, so just confirm the settings.
On the right, in the Erase tab, choose to format the drive as Mac OS Extended (Journaled). To do this, launch Disk Utility and choose the destination drive in the drive list (left column). This will create the bootable USB flash drive. Step 1: Format Your Drive First, you must partition and erase the drive so that it can be bootable.You can do this by using the Time Machine feature in Mac OS X, or third-party software such as Carbon Copy Cloner.Ĭ) Create a bootable USB flash drive with a storage size of at least 8GB.ĭ) Download OS X 10.10 Yosemite Final from the Mac App Store and save it to the Applications folder – its default location. 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?.