Boot to the Recovery Volume (command – R on a restart or hold down the option/alt key during a restart and select Recovery Volume). Run Disk Utility Verify/Repair Disk and Repair Permissions until you get no errors. Then re-install the OS.
How do I reinstall OSX if disk is locked?
2 Answers
- Select Disk Utility from the utilities window of macOS Recovery, then click Continue.
- Select your harddrive in the sidebar.
- Click the Erase button (MAKE SURE YOU DO HAVE BACKUP)
- Format: Choose Mac OS Extended (Journaled)
- Scheme: Choose GUID Partition Map.
- Go back to the OS X installation guide.
How do you unlock a locked disk on a Mac?
To unlock and access the startup disk’s FileVault-encrypted data:
- On the client Mac, start up from macOS Recovery by holding Command-R during startup.
- Select “Disk Utility” and click “Continue”.
- Select startup disk in left-hand sidebar and click “Mount”.
- Enter recovery key in password field and click “Unlock”.
What do you do if your Mac won’t reinstall?
Can’t Reinstall OS X On Your Mac? Try Resetting The PRAM
- First, completely shut down your Mac via the Apple Toolbar.
- Then, hold down Command, Option, P, and R buttons on your keyboard as you restart your Mac. …
- After the second chime, let go of the buttons and let your Mac restart as normal.
Why is my Macintosh HD disk locked?
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.
How do I unlock a disk?
How to Unlock a Hard Drive
- Step 1: Run a disk check. Install the boot disk or USB drive, and power the computer on. …
- Step 2: Run a system file check. Boot the computer from the disk or USB as you did in step one. …
- Step 3: Complete a startup repair. …
- Step 4: Try a system restore. …
- Step 5: Refresh your PC.
Can a locked Mac be unlocked?
After you locate your Mac, you can unlock it by entering the passcode that you created when you locked it with Find My. If you can’t remember that passcode, you have three options: Sign in to iCloud.com/find, then select your Mac from the Devices menu. Select Unlock and follow the steps to verify your identity.
How do I unlock my encrypted Mac hard drive without password?
In order to unlock or decrypt the Mac’s drive, you’d need to know the administrator’s username and password, unless a recovery key was created. You’d go to System Preferences > Security & Privacy > FileVault > unlock the padlock with your username and password to unlock it.
How do I boot my Mac into recovery mode?
Reboot your Mac. Hold down Option/Alt-Command-R or Shift-Option/Alt-Command-R to force your Mac to boot into macOS Recovery Mode over the internet. This should boot the Mac into Recovery Mode.
How do you reset a Mac OS?
To reset your Mac, first restart your computer. Then press and hold Command + R until you see the Apple logo. Next, go to Disk Utility > View > View all devices, and choose the top drive. Next, click Erase, fill out the required details, and hit Erase again.
How do I reinstall Macintosh HD?
Enter Recovery (either by pressing Command+R on an Intel Mac or by pressing and holding the power button on a M1 Mac) A macOS Utilities window will open, on which you will see the options to Restore From Time Machine Backup, Reinstall macOS [version], Safari (or Get Help Online in older versions) and Disk Utility.
How do I reinstall OSX without Internet?
Installing a fresh copy of macOS via Recovery Mode
- Restart your Mac while holding down the ‘Command+R’ buttons.
- Release these buttons as soon as you see the Apple logo. Your Mac should now boot into Recovery Mode.
- Select ‘Reinstall macOS,’ and then click ‘Continue. ‘
- If prompted, enter your Apple ID.
What happens if I restore Macintosh HD?
You can restore a volume from another volume. When you restore from one volume to another volume, an exact copy of the original is created. WARNING: When you restore one volume to another, all the files on the destination volume are erased.