How do I reinstall macOS after disk is wiped?

Choose Apple menu > Shut Down, press and hold the power button until “Loading startup options” appears, select Options, click Continue, then follow the onscreen instructions. In the Recovery app window, select Reinstall for your macOS release, click Continue, then follow the onscreen instructions.

How do I fix my hard drive locked when reinstalling OS X?

I have just wiped my iMac, and something must have gone wrong in the process as i cant change the boot drive by holding down option key and when i go to install reinstall macOS through macOS utilities when i select the 500GB hard drive the main one it just says “Disk is locked”. Can anyone help me with this issue?

How do I reinstall OSX High Sierra?

You can reinstall macOS Sierra or macOS High Sierra by doing the following:

1. Back up the Mac before beginning.
2. Reboot the Mac and hold down COMMAND + R keys concurrently right after you hear the boot sound, this will boot the Mac into Recovery Mode.
3. At the “macOS Utilities” screen choose “Reinstall macOS”

How do you unlock a disk on a high Sierra Mac?

Helpful answers

1. Restart the computer.
2. The Utility Menu will appear in from 5-20 minutes.
3. Select Disk Utility and click on the Continue button.
4. When Disk Utility loads select the drive (usually, the out-dented entry) from the side list.
5. Click on the Erase tab in Disk Utility’s main window.

How do I unlock a locked hard drive Mac?

See this post for details.

1. Boot your Mac and hold down ⌘-R (Command –R) to boot from the Mac’s Recovery HD partition.
2. Open Disk Utility.
3. Select your locked hard drive.
4. Under the File menu, select Unlock “Drive Name” or Turn Off Encryption… , based on what you want to do.

Why won’t my macOS Sierra install?

If you get an error message while installing macOS Sierra saying that you don’t have enough hard drive space, then restart your Mac and boot into safe mode. To do this, turn off your Mac and wait 10 seconds, the press the power button. Then restart your Mac and try to install macOS Sierra again.

Why can’t I install high Sierra on my Mac?

To fix the macOS High Sierra problem where the installation fails due to low disk space, restart your Mac and press CTL + R while it’s booting to enter the Recover menu. It may be worth restarting your Mac in Safe Mode, then trying to install macOS 10.13 High Sierra from there to fix the problem.

How do I reinstall macOS High Sierra without losing data?

How to Update & Reinstall macOS Without Losing Data

1. Start up your Mac from macOS Recovery.
2. Select “Reinstall macOS” from the Utilities Window and click “Continue”.
3. Follow the onscreen instructions to select the hard drive you want to install the OS on and start the installation.

How do I reset my Mac to factory?

Shut down your Mac, then turn it on and immediately press and hold these four keys together: Option, Command, P and R. Release the keys after about 20 seconds. This will clear user settings from the memory and restore certain security features that may have been altered previously.