Hold cmd+r at bootup to get to Recovery Mode. This will install 10.11 over itself without affecting your user files (so long as you don't choose 'erase and install'). I had an issue with El Capitan beta 3 which prevented Mail working. I noticed that if I checked via 'About' it did not even say El Capitan was the OS. Does anyone know what I can do to reinstall OS X El Capitan? Junkw macrumors 6502a. Jun 25, 2010 527 366 Haifa, Israel. Jan 5, 2020 #2 you booted with cmd-r. Insert the USB flash drive containing the El Capitan installer into your Mac. Restart your Mac while holding down the Option key to display the OS X Startup Manager. Select OS X El Capitan installer on the USB flash drive and then press Return to start up the Mac from the installer.

How to Perform a Clean Install of OS X El Capitan. OS X El Capitan (OS X 10.11) offers two installation methods. This guide focuses on the 'clean install' method. When you install El Capitan on your current startup drive with the clean install method, you erase everything on the drive. That includes OS X, your user data, and personal files.

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!

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.

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.

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

Reinstall El Capitan Without Apple Id

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

Reinstall El Capitan From Usb

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.

Reinstalling El Capitan From Usb

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

Rachel is trying to sell her Mac, but…

My friend was wiping my Mac so I could sell it and I’m pretty sure they’ve deleted the start up disk? It’s not letting me reinstall the OS on a recovery startup.

She wonders about a fix. There are a couple of options with an erased partition.

Because Recovery didn’t work, the fastest way to install fresh is to make or borrow a macOS installer on a USB flash drive or a disk drive. We have instructions for making a bootable installer with macOS Sierra (as well as archived versions for several previous releases). You need at least an 8GB flash drive. The article includes instructions on obtaining the installer, which might involve you having to use someone’s else Mac to download it, if you don’t have a replacement Mac on hand yet.

But if you can’t get access to another Mac or the necessary drive, it’s still possible to use a different Recovery mode on all recent Macs, dating back to 2010. Normally, you can start up a Mac while holding down Command-R to boot into what Apple now calls macOS Recovery. That allows you to run Disk Utility, reinstall or wipe and install the system, access Terminal for command-line functions, and so on. In that mode, when you choose to reinstall without erasing the drive, my recollection is that Recovery looks for the current OS system installer on your startup disk in the Applications folder, and uses that. (Apple doesn’t document that, and I haven’t had to test that for years.)

Failing finding it, Recovery downloads the currently installed version of macOS (or OS X), which is about 5GB. When complete, it installs it and reboots, and places the installer in the Applications folder.

However, there’s yet another option: macOS Recovery over the Internet, which requires either a Mac model released in 2012 or later, or most 2010 and 2011 models with a firmware upgrade applied. There, the Mac reaches out over a Wi-Fi or ethernet connection to download the relatively modest Recovery software, which then bootstraps the download of the full macOS installer.

Apple says Internet-based Recovery should happen automatically on supported models, and you should see a spinning globe when that mode is invoked while the download occurs. However, if you have normal Recovery installed and it refuses to install macOS for some reason, you can manually invoke Internet Recovery.

While Command-R at startup always installs whatever the most recent version you installed on your Mac, holding down Command-Option-R brings down the very latest compatible version that can be installed. Apple also offers Shift-Command-Option-R, which installs the version of OS X or macOS with which your computer shipped, or the next oldest compatible system still available for download.

(Apple just changed this behavior with 10.12.4, but if you’re using Internet Recovery for a clean install on an erased drive, the new behavior should be active as it will be pulled from the version of Recovery that’s bootstrapped from Apple’s servers. The pre-10.12.4 option is simply Command-Option-R, but it acts like the new Shift-Command-Option-R, installing the shipped OS or the oldest compatible version.)

Apple recommends the Command-Option-R option as the only safe way to reinstall a Mac with El Capitan or earlier versions of macOS if you want to be sure your Apple ID doesn’t persist even after erasure.

El Capitan Os X

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Reinstall El Capitan On A Mac

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