Reinstall Os X Yosemite

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Clean Installing OS X Yosemite | The three steps to clean installing OS X Yosemite

Do you want a brand new start on your Mac with no apps or files? A clean install of OS X Yosemite is just the thing for you. Now, there are three things you’re going to want to do in order to perform a clean install: clean up your Mac (which is a quick, easy task with CleanMyMac X), back it up with Time Machine, and then install a fresh copy of OS X Yosemite.

DVD DL, Mac OS X 10.10 Yosemite Full OS Install, Reinstall, Recovery and Upgrade Supported Models: iMac: Late 2007 or later, MacBook: Aluminum Late 2008, MacBook: Early 2009 or later, MacBook Pro: 13-inch - Mid 2009 or later, MacBook Pro: 15-inch - Mid/Late 2007 or later, MacBook Pro: 17-inch - Late 2007 or later, MacBook Air: Late 2008 or later, Mac Mini: Early 2009 or later, Mac Pro: Early. Is a clean install done right, instead of making it complicated, showing files, hiding fi.

Reinstall Os X Yosemite
  1. 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.
  2. Aug 29, 2014 Other than the thumb drive, all you need is a Yosemite compatible Mac (2007 iMac, 2008/9 MacBook, 2007 MacBook Pro, 2008 MacBook Air, 2009 Mac Mini, or 2008 Mac Pro or later models).

We’ll go over all three steps below. So, let's start with number one — Cleaning up your Mac.

Step 1: Clean up your Mac

So listen, you’re definitely going to want to do a backup of your Mac in case something goes wrong. To make that process easier, you should first clean up your Mac. It may sound like a daunting task, however, there are tools that can help you out, like CleanMyMac. Cleaning up your Mac with CleanMyMac X will save you time and the stress of cleaning it up yourself. Download CleanMyMac X and follow the steps below before backing up your Mac:

  1. Launch CleanMyMac X.
  2. Click Scan.
  3. After it’s done scanning, click Run.

And that’s all it takes to do basic Mac cleanup with CleanMyMac X. If you’d like to clean up more junk on your Mac, check out the sections on the left side of the app. It will help you take care of tons of other cleanup items. After you’re done cleaning the junk off your Mac, it’s time for the next step.

Step 2: Back up your Mac

Mac os x recovery os

Backing up is just good practice. If something goes wrong, you don’t want to be left stranded without a backup of your Mac. Now, if you don’t wish to back up your Mac, you can proceed to step three. But remember, if you don’t have a backup and something goes wrong, you won’t be able to recover or restore anything from your current Mac. With that said, here are the steps for backing up your Mac:

  • Go to your Applications folder and click Time Machine.
  • Click on “Select Disk.”
  • Select the external drive you wish to save your backup. An Apple Time Capsule is the ideal place to save it to. If you don’t have one, choose a different external drive.
  • Click “On” to turn Time Machine on; the button is located on the left-hand side of the menu.
  • To the right, below the name of the storage device, you’ll find, “Oldest backup,” “Latest backup,” and “Next backup.” Your backup should start within the next 5 minutes.

Once you’re done backing up your Mac, head to the next section.

Step 3: Clean Install OS X Yosemite

It’s time for a clean install. We’re going to show you how to do it without using a USB drive, which makes it much easier and less confusing. So to start, you should download OS X Yosemite from the Mac App Store. Once it’s finished downloading, it’ll immediately load up on your screen. Follow the instructions to install OS X Yosemite. Once it’s done, it’ll ask you to restart your Mac. Do it, and once it’s loaded up, we’ll start the clean install process:

  1. We’re going to restart your Mac again. But this time, hold down Cmd+R. (Keep holding it down while it restarts, do not let go!)
  2. Now, your Mac should load a screen with a few options (you can let go of Cmd+R now).
  3. Select the Disk Utility option.
  4. In the window, at the top of the left bar, select your Mac’s Main Drive. It should be something like MainHD.
  5. Now, select the Erase tab, located next to the First Aid button at the top-center.
  6. Near the center of the window, select the Format drop-down list and select “Mac OS X Extended (Journaled)” as the type.
  7. Click Erase (this will erase your main drive!) and allow some time for the drive to format.
  8. When it’s finished, close out Disk Utility and select “ReInstall OS X” from the menu. It will ask for your Mac App Store password to redownload OS X Yosemite. Give it a minute to do so.
  9. A new window should pop up and OS X Yosemite should begin to install. If it does not, press back and enter your password again.
  10. Once again, follow the install instructions and enjoy your newly clean-installed OS X Yosemite.

If you are a fan of the older OS X 10.9 Mavericks over the latest OS X Yosemite version and wish to revert to the previous version from the latest OS X 10.10 Yosemite, you can do that via the downgrade process.

The following tutorial explains an easy method to downgrade from OS X Yosemite to the Mavericks version. But make sure that you have backed up all your data before following the downgrade process.

IBTimes UK will not be responsible for any damage during the downgrade process.

How to downgrade OS X Yosemite to Mavericks

  • Downgrading to OS X Mavericks is an easy method. You need to install a Time Machine Backup of your Mac on OS X Mavericks
  • Also copy and save all your files from OS X Yosemite as you cannot restore a Yosemite Time Machine backup once you switch back to Mavericks.
  • With the Time machine drive plugged in or available on the network perform the following:
  • Click on the Apple in the upper left and choose Restart
  • When Mac is restarting press the Command and R keys together until the screen turns grey
  • On the next screen choose Restore from a Time MachineBackup and click Continue
  • Click on Time Machine disk then choose the backup you want to restore. Ensure this one is with Mavericks
  • Once you have finished the backup, follow the on-screen prompts to complete the installation and restore from backup
  • Note: Without backup you can still downgrade but you need a USB drive and you can manually back up all your data. But this is likely to take a little longer.
  • You need to create a clean install of OS X Mavericks and then move your files back to the computer. But be careful while doing so as updates like these can change file structures and libraries used in apps.
  • Download OS X Mavericks from Mac App Store
  • Open the Mac App Store, click on Purchase then find OS X Mavericks, click Download then click Continue and wait for the download to complete
  • Click Install on the pop up that appears. Ensure that you have backed up all data as the following step will delete your data

Step-1: Connect the USB drive and open Disk Utility

Reinstall

Step-2: Select USB drive in the sidebar and click on the Erase tab

Step-3: Select Mac OS Extended (Journaled) in the Format box and name it as Untitled

Step-4: Click Erase and wait for the format to get completed

Step-5: When the format is completed, close Disk Utility and open Terminal. Enter the following command and press Enter

Can't Reinstall Os X Yosemite

sudo /Applications/Install OS X Mavericks.app/Contents/Resources/createinstallmedia –volume /Volumes/Untitled –applicationpath /Applications/Install OS X Mavericks.app –nointeraction

Yosemite

Now you should wipe your hard drive and install OS X Mavericks. Click here for help. Now you should see OS X Mavericks running on your system instead of Yosemite.

Reinstall Os X Yosemite Disk Locked

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Reinstall Os X Yosemite Macbook Pro

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Reference: GottaBeMobile
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