Installing El Capiton on an old Mac Book Pro today, I received the error: OS X could not be installed on your computer. No packages were eligible for install. Contact the software manufacturer for assistance. Quit the installer to restart your computer and try again. It’s not too big of a deal to leave SIP disabled if you’re somewhat cautious about what you install, Remember SIP wasn’t around before OS X El Capitan so it basically means you’ll have the same security level of prior releases of Mac OS. In other words, these instructions describe the process for installing, reinstalling, or upgrading OS X El Capitan. You must have Internet access to complete this procedure. If you’ve never had El Capitan on this Mac, the first thing to do is visit the Mac App Store, download El Capitan (it’s free), and install it. Once you’ve done that, here’s how to install, reinstall, or upgrade to El Capitan, step by step: Boot from your Recovery HD partition by restarting your Mac while holding down the Command+R keys. The OS X Utilities window appears. Select Reinstall OS X, and click Continue. The OS X El Capitan splash screen appears. In other words, these instructions describe the process for installing, reinstalling, or upgrading OS X El Capitan. You must have Internet access to complete this procedure. If you’ve never had El Capitan on this Mac, the first thing to do is visit the Mac App Store, download El Capitan (it’s free), and install it.

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Hello People, Today we are going to share information of performing hard reset on Mac OS X El Capitan. If you feel that your Macbook is too slow? or freezes too often while in use or keeps getting an error message due to software crash or has a problem with a forever loading time, we would like to recommend you to perform hard reset. Hard Reset is to restore your Mac to its factory settings, therefore you can feel that your Mac gets much more faster after hard resetting. There is one important thing to do before performing hard reset is to make a back-up file. Please make a back-up file, if you want to keep your data. All of your data will be erased. However, if you are ready let’s get it started!

Os X El Capitan Could Not Be Installed

Step 01. Shut Down your Mac.

Step 02. Press and Hold the Command + R keys at the same time and Turn your Macbook on while holding down the Command + R keys.

Step 03. Release all keys when the Apple logo appears on the screen.

Os X El Capitan Not Installing

Step 04. Click on the Wi-Fi signal icon which is located in the right side top corner. Connect to the network to download El-Capitan operating system software.

Step 05. Now we are going to format a hard drive. Select Disk Utility and click on Continue.

Step 06. Select your hard drive and then click on Erase. It will ask you to format the hard drive to confirm. Click Yes.

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Step 07. Click on Done button when it’s done. Close the Disk utility windows and go back to the recovery mode.

Step 08. Now we are going to install Mac OS X El Capitan. Select Reinstall OS X in the Recovery Mode.

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Step 09. Click Continue when the OS X installer comes up. It will ask to select Agree or Disagree few times. Click on Agree or Continue on all selections.

Step 10. When the installing process is done, you need to configure settings. Now it’s done!