macOS Mojave Slow Boot/Startup (Fixed)


Every update of macOS creates many problems on Mac. Likewise, Mojave also has some issues. One of the important issue is Mojave takes longer to boot. Some people said that Mojave won’t boot/startup. Here I am going to tell you the solutions to fix this issue.
Solution 1: Force Restart

  1. Press and hold the Power Button until your Mac turned off.
  2. Wait for few seconds and then press the Power Button to turn on your Mac.

Solution 2: Select your startup disk

  1. Go to Apple menu->System Preferences.
  2. Click “Startup Disk” icon.
  3. Click the lock icon to unlock.
  4. Enter your Admin Password and then click “Unlock”.
  5. Select your Startup Disk (Macintosh HD) and then click “Restart”.
  6. Now your Mac will start up normally.

Solution 3: Disconnect all accessories and devices

  1. Disconnect all peripheral devices from your Mac like the printer, scanner, mouse, keyboard, webcam, etc.
  2. Disconnect all accessories like USB, FireWire, Thunderbolt devices, etc.
  3. Don’t use hubs/extension cords with your Mac when you start your Mac.

Solution 4: Fix disk errors in Recovery Mode

  1. Turn off your Mac via Apple menu->Shut Down.
  2. Press the Power Button.
  3. Press and hold the Command + R keys simultaneously as soon as possible after pressing the Power Button until the Apple Logo appears.
  4. After that macOS Utilities window will appear with 4 options. Tap “Disk Utility”.
  5. Tap “Continue”.
  6. Select the disk/drive (Macintosh HD) that you want to repair.
  7. Select First Aid->Run. This action will check the disk for errors.
  8. Click “Done”.
  9. Close Disk Utility.
  10. Restart your Computer via Apple menu->Restart.

Solution 5: Reset PRAM/NVRAM

  1. Press and hold the Power Button until your Mac turned off.
  2. Press the Power Button to turn on your Mac.
  3. Then immediately press and hold the Option + Command + P + R keys simultaneously as quickly as possible after pressing the Power Button.
  4. Keep pressing those keys until you hear the startup sound for the second time.
  5. Wait for some time. Your Mac may take 15-20 minutes to restart.
  6. Then your mac will restart normally.

Solution 6: Restart your Mac in Safe Mode
Restarting your Mac in Safe Mode will fix many issues in the Mac. But you can’t use some features in Safe Mode.

  1. Press and hold the Power Button to turn off your Mac.
  2. Press the Power Button to turn on your Mac.
  3. Press and hold the Shift Key immediately after pressing the Power Button.
  4. You can see the Apple Logo on the screen. Don’t leave the Shift key when you see the Apple Logo.
  5. Keep pressing the Shift Key until you see the Login Window.
  6. Select your User Account and then enter the Password to login. You may need to login twice if FileVault is turned on.

Note: If it doesn’t work out, leave Safe Mode and then try next solution. To leave Safe Mode, restart your Mac via Apple menu->Restart. Wait until your Mac restarts.
Solution 7: Turn Off FileVault

  1. Go to Apple menu->System Preferences.
  2. Click “Security & Privacy” icon.
  3. Click the lock icon to unlock.
  4. Enter your Admin Password and then click “Unlock”.
  5. Click “Turn Off FileVault”.
  6. Click “Restart & Turn Off Encryption” in the pop-up box.

Note: You have to connect your Mac to a power source while decrypting.
Solution 8: Reinstall Mojave

  1. Press and hold the Power Button to turn off your Mac.
  2. Press the Power Button to turn on your Mac.
  3. Press and hold the Command + R keys simultaneously as soon as possible after pressing the Power Button.
  4. Keep pressing Command + R keys until the Apple Logo appears.
  5. After that macOS Utilities window will appear with 4 options. Tap “Reinstall macOS”.
  6. Tap “Continue”.
  7. You will be prompted to choose your hard disk/drive. If you are not asked to select your disk, tap “Show All Disks”. You may need to enter your Apple ID.
  8. Tap “Install”. Wait until the installation process is completed.
  9. Your Mac will restart after completing the installation.

If you know any other solutions to fix Mac slow boot after Mojave update, let us know through your comments.

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