Reinstall Os X Yosemite

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Is there a way to determine the version of OS X installed on the system from the recovery tool? Is there a way to obtain a disc copy (without paying as we already have it installed) of Mavericks or Yosemite so that I can reinstall from media? Finally, is my only option now to do an Erase and then Install OS X from the Internet Recovery tool?

Does anyone know what I can do to reinstall OS X El Capitan? This is a Mac book air 2010 was on Yosemite 10.10. Comment boltjames macrumors 601. Apr 15, 2015 Resetting Mac OS X Yosemite to its original state. When you're ready to take the plunge. Quit out of the Disk Utility app, and this time choose Reinstall OS X and Continue. OS X Mavericks is quite good, and is at least optimized for most hardware. On a brand new Mac, OS X Yosemite runs quite well, however. Fortunately, most 2010 Macs came with physical reinstall DVD volumes of Mac OS X Snow Leopard, so you should be good to go with that.

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  • Reinstalling Yosemite on a computer alreadyrunning it

Mac Os X Yosemite Iso

Upgrading from previous versions to OS X 10.10 (Yosemite)

Reinstall

OS X 10.10 (Yosemite) is no longer available for purchase from theMac App Store. If you have a previous version of the operating system,and your computer meets the system requirementsfor OS X 10.11 (El Capitan), you can upgrade directly to thatversion instead; see ARCHIVED: Install or upgrade OS X 10.11 (El Capitan)

Install Os X Yosemite Download

Reinstalling Yosemite on a computer already running it

To reinstall or recover Yosemite, you must have an active Internetconnection. If you are on campus at IU, UITS recommendsthe wired Ethernet network instead of wireless. However, if IUSecure is your only option, see Connect to an IU wireless network in macOS if booted from your Recovery HD

Reinstalling while keeping files, applications, and settings

  1. Restart your computer, and immediately hold down command-r until the gray Apple logo appears.
  2. If prompted, select your main language and then click the arrow.
  3. Click Reinstall OS X, and then Continue. Follow the instructions on the screen, and then choose your hard disk. Click Install, and enter your Apple ID information if prompted.
  4. When the installation is complete, select App Store... from the Apple menu, and install any available updates.

Reinstall Os X Yosemite Without Apple Id

Reinstalling while erasing everything on your computer

  1. Restart your computer, and immediately hold down command-r until the gray Apple logo appears.

  2. If you see a screen asking you to select your main language,choose it, and then click the arrow.
  3. Click Disk Utility, and then Continue.
  4. In Disk Utility:
    1. Click your hard disk in the left column, and thenclick the Erase tab.
    2. Next to 'Format:', make sure Mac OS Extended (Journaled)is selected. In the 'Name:' field, give your disk a name.
    3. If you would like to securely erase your data, click SecurityOptions..., adjust the slider accordingly, and clickOK.
    4. When you're ready, click Erase..., and thenErase again to erase your disk.
    5. Once it's completed, quit Disk Utility.
  5. Click Reinstall OS X, and then Continue:
    1. Follow the instructions on the screen, and then choose your harddisk.
    2. Click Install. If prompted, enter your Apple IDinformation.
    3. Once the installation is complete, you'll beasked to enter basic information, and have the option to transfer datafrom another computer or backup.
  6. From the Apple menu, select App Store, and then installany available updates.