Now quit Disk Utility and click reinstall OS X at the top and wait for it to finish and restart. This will put you on the OS X version that came from the factory. You can update to El Capitan after if you like. What you are seeing locked there in your second screenshot is the Recovery HD partition, and that is as it should be and not the problem.

Using Apple's Internet Recovery to Unlock or Decrypt a FileVault 2–Encrypted Boot Drive One of the new features in Macs that shipped with Mac OS X 10.7.x and later versions was Apple's Internet Recovery. If you encounter a situation in which you cannot start from the Mac's Recovery HD partition, such as when the internal hard drive has failed, or when you've installed a new disk without an OS, Mac models released after July 2011 can use Internet Recovery. This new feature lets you start your Mac directly from Apple's servers by using a NetBoot-like process, and it gives you the same functionality as in Recovery HD. Because Internet Recovery has the same capabilities as your Mac's Recovery HD partition, it can be used to unlock or decrypt a FileVault 2–encrypted Mac. This design is potentially valuable in case of emergency; you can recover a FileVault-encrypted drive even when the Mac's Recovery HD partition has been damaged or corrupted in some way. To force your Mac to boot to Internet Recovery, start the Mac and hold down Command-Option-R on your keyboard.

You should see a gray screen with an animated globe, displaying a message similar to this (see ): Starting Internet Recovery. This may take a while.

As I've said before, for me. At one point, I realized that there were plenty of files on my Mac that I didn't need any more, but too many to delete individually. In other cases, your Mac can be experiencing some major malfunctions: constant crashing, locked controls, slow boot times, missing files, etc. Often, the best option to fix these problems would be to reformat your computer and reinstall your OS, but since most of us don't plan on ever taking this drastic measure, we don't obtain a recovery disc or thumb drive.

Thankfully, the geniuses over at Apple have made the process easy for us—no need for a disc; no need for a drive—all you need is a decent internet connection. With just a few clicks of some buttons and your Mac is gonna be running like it did the day you got it. Best of all, this will work with Lion,,,,. Step 1: Back Up Your Files! Okay, so you may have a lot of files that you want to get rid of, but you definitely have some files you want to keep. In my case, I even have programs I want to keep so I don't have to re-download them after the process is over.

Use a writable CD/DVD, a, or any of the multitude of cloud options to keep your important files backed up. You could also create a Time Machine backup, but I wouldn't do a full restore later—just pick and choose things you want back after a fresh install—otherwise it could run just as sluggishly or erratic as it did before. Step 2: Restart Your Computer Once you've double-, triple-, and quadruple-checked your backups, restart your computer.

Step 3: Press CMD+R The second you see a grey screen, hold the CMD and R keys down for about 15 seconds, then let go and you'll be taken to OS X Utilities recovery. PLEASE HELP!! Whenever I turn on my iMac, it would load up to the apple logo and shut down after a few seconds.

This happened ever time i tried to turn it back on again. I had a bit of hope but nothing ever changed so I decided to erase my disk and was immediately promoted me to restart my computer. When I did, it brought me a a symbol of a folder with a question mark which flashed forever. I held the power button to turn it off and hit it to turn it on again while pressing command and R keys at the same time, it brings me a sign of a spinning globe that loads forever. When I restart it and immediately insert its installation DVD while pressing key C, it brings me the apple logo and stays like that for ages. This is freaking me out.

Connect the Samsung Smart TV with your Apple TV, then play the iTunes movies using AirPlay. App for streaming mac to samsung smart tv. Watch iTunes Movies on Samsung Smart TV via Apple TV 3 Apple TV is a perfect way for streaming iTunes movies/TV shows to other TV sets, including Samsung Smart TV. Note: iMacs don't have the HDMI connection. At last, you can play the DRM-protected iTunes movies on your Mac laptop so that you can watch them on Samsung Smart TV simultaneously. Secondly, connect your Mac laptop to the Samsung Smart TV via HDMI connection.

I have read and tried so may solutions online but nothing has changed. Please help me with another way. In summery, my computer has no files and I won't install a new OS. So I'm having a slightly different issue. I've followed your steps, but every time I hit 'erase,' it brings up a notice saying: 'Disk Erase failed with the error: Couldn't unmount disk.' I've attached a pic of the error.