Recovery HD, is a hard drive partition on the hard drive of Mac. It can be accessed by rebooting the Mac and then pressing down the Command+R keys. Mac OS X Lion and above include the Recovery feature which can be used to reinstall the operating system, repair the hard disk or restore the system from a backup. To enter the recovery mode, press command+r key when the system reboots, keep holding them down until the Apple logo appears. The recovery mode has a desktop with an OS X menu bar and an OS X Utilities window with the options listed above. You can then choose your desired option from the utilities window or the utilities menu depending upon your requirement. Here we outlined about the useful function of recovery HD and how to restore Mac with the help of recovery HD. What's more, when users could not fix issues with recovery HD, there is still a way to recovery data on Mac.
As mentioned earlier, Recovery HD contains essential diagnostic and troubleshooting tools which help users fixing his Mac if anything goes wrong. The Recovery HD has the following features:
Time Machine has a unique backup feature in the OS X. Time Machine keep a track of how your Mac performed on a particular day so that users can restore Mac to any desired day in the past. Time Machine keeps backup of a day, a week and even a month but when the backup drive becomes full, the oldest backup will be deleted to make more space for the new backups.
Disk utility is one of the main options offered in the recovery mode. This feature can be used to repair the hard drive of your Mac once you select the “Repair Disk” option. recovery hd will also let you search for troubleshooting info over the internet as well as remove the contents of the hard drive and restore it from a Time Machine back up.
This is also a great feature provided by the Recovery HD. Using this feature you can download your desired version of the OS X over the internet without requiring any kinds of optical disk. But obviously, for this method to work, you need to be connected to the internet.
To restore Mac with the help of Recovery HD, follow these steps:
Recovery HD’s aim is to help users get the solutions from different troubleshooting by OS X. But what happened if you cannot find any solutions from the Recovery HD itself? Well, one thing that you shouldn’t really do is panicking. This article takes into account some common problems with recovery HD itself and tells you how to take care of them in the following lines.
Recovery HD can get locked sometimes which is indicated by the appearance of an error message that says, “Hard Drive locked”. To get rid of this problem, simply go to disk utility, click on the hard drive then click 'enable journaling' to unlock the drive.
Recovery HD does not show up if you have formatted your entire hard drive. To bring it back, you will need to have a Time Machine backup of the data from your hard drive before the formatting happened. Restoring the OS from that backup will get you your OS back while to get the Recovery HD back you will need to run a minimal install of your OS using a setup from the internet or a disk. It will bring back the recovery hd to your Mac.
We recommend a Mac data recovery software for you ,once you did not backup data from hard drive before you restore Max os or you can not restore Mac with the help of recovery HD. Recoverit data recovery for Mac, it can help you recover lost or deleted files from Mac quickly, safely and thoroughly. It supports recover lost,deleted,formatted data from Mac hard drive as well as from USB drives, external hard drives, and other storage devices.
Due to macOS High Sierra (macOS 10.13) requirement, Mac users are not allowed an access to the built-in system drive from any apps. Therefore, if you need to restore lost data from the system disk under macOS 10.13, please "disable System Integrity Protection" first.
How to disable "System Integrity protection"? Please follow the steps below.
Step 1Reboot the Mac and hold down"Command + R" keys simultaneously after you hear the startup chime, this will boot OS X into Recovery Mode.
Step 2When the "OS X Utilities" screen appears, pull down the "Utilities" menu at the top of the screen instead, and choose "Terminal".
Step 3In the "Terminal" window, type in "csrutil disable" and press "Enter" then restrart your Mac.
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