Is it possible to create a USB pen drive in order to reinstall OS X Yosemite on a MacBook Air 13" (2015) ?
How can I create this USB pen drive ? I don't know the steps of this procedure. Besides I can't find the installer of Yosemite in the Mac App Store.
Thank you !
MacBook Air (13-inch, Early 2015), OS X Yosemite (10.10.5)
Howdy Intruder_99,
Thank you for using Apple Support Communities.
Yes, if you already purchased Yosemite you can create a bootable USB flash drive to install it.
See Create a bootable installer for OS X - Apple Support
If you don't currently have your purchased Yosemite downloaded, you can redownload it.
Download your past purchases - Apple Support
Best regards.
Howdy Intruder_99,
Thank you for using Apple Support Communities.
Yes, if you already purchased Yosemite you can create a bootable USB flash drive to install it.
See Create a bootable installer for OS X - Apple Support
If you don't currently have your purchased Yosemite downloaded, you can redownload it.
Download your past purchases - Apple Support
Best regards.
My OS X version was already installed on my MacBook Air. I can find it neither on the Mac Store nor in my purchases. I don't know how to download it. Thank you.
Hi Intruder_99,
If you don't have the installer for Yosemite you can use OS X Recovery to install to an external drive.
See: Use the version of OS X that came with your Mac, or a compatible newer version - Apple Support
You can use OS X Recovery to install a version of OS X on an external drive that's compatible with your Mac.
and: How to install OS X on an external drive connected to your Mac - Apple Support
Note that is for installing OS X onto the pen drive, not creating an installer, but you may not need the pen drive as an installer if you can use the Internet installer.
Hope that helps.
Reinstalling OS X Yosemite with a USB pen drive
