Before restoring the factory settings it is necessary to support your information; throughout the process, your Mac must be connected to the power supply and the Internet.
If your Mac already has some performance issues, install OS X Yosemite will not improve performance.
What you need is fresh installation or from scratch.
The following guide will allow you to restore the factory settings your Mac, without a recovery disc or special tools.
Recommendation: Before using the guide read the entire article to understand the process and avoid complications or loss of information.
Final Warning: it is essential that throughout the process your Mac is connected to the mains and have Internet.
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Steps to Restore Mac with OS X Yosemite
1. Back up, back up and support
Because it will delete all data on the hard disk, it is vital that you back up the data transfer think the new operating environment.
The formatting process will serve to review what documents, photos, videos, songs or applications you are useful.
It is best to think that files save the copy to an external hard drive and not transfer it back to your machine unless they are to have a real use.
In the case of applications, it is recommended to re-download and whether they are cost programs must restore your purchases to avoid having to pay again for the software.
2. Goodbye Mac
Once you’ve backed up your information and you’re sure you want to restore the system (in this process because of no second chances) you must restart your computer.
Navigate options, select the Manzanita and Restart
3. Start with CMD plus R (Restore)
Once you begin the process of restarting your Mac screen turns off and the instant a gray screen appears (before you reach the window boot or access).
You must press the CMD or Command key plus the letter R. That is CMD + R.
4. Which option to choose
The system opens a window with the name OS X Utilities which can select four main options.
Restore from a Time Machine backup, reinstall Mac OS X, online Help Disk Utility.
These options might change their names depending on the language you have configured your system. For this guide, we will select the fourth option Disk Utility.
5. Disc Selection
The left side you will see the name of the internal or external drives connected to the Mac and right side data and options will be deployed to run for the record: When you select another window, which in turn will be divided into two spaces open selected.
What you should do is to choose the internal hard disk. It is to identify the disc begins with the storage capacity of your Mac, followed by the word Apple and the disk type (solid or rigid state). An example would be APPLE 128 GB SSD.
Select the disk and in the right window choose the “Delete” option. The processing time depends on the amount of information that must be removed.
6. A final small step
Once the process is complete returns to the first window (one that had four main options) and selects the option Reinstall Mac OS X. Here the process will take several minutes but once completed will have a completely clean environment.
Seeking clarification for installing OS X Yosemite
The above guide works for those who want clean and reformat your computer. The recovery tool Apple reinstall the latest version of Mac OS X Yosemite running on the computer prior to formatting.
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It is recommended that once the equipment and completely frees of junk data files or downloads and install the new version of Mac OS X Yosemite formatted. Download OS X Yosemite DMG File (OS X Yosemite Free Download) from the official site.