Mac Startup Disk Boot Camp Missing

You mentioned troubleshooting, did it include these:


NVRAM reset

Sep 21, 2016  Question: Q: Boot Camp missing from Startup Disk. Hi, my Boot Camp is missing from my Startup Disk. Please advise. After reboot I can see Mac and Windows both but when I am running startup disk in Mac Its not showing Bootcamp Partition. However in Disk utility its showing Mac.

Restart in OS X from Boot Camp. If you have started up your Mac in Windows using Boot Camp, you can use the Boot Camp system tray to switch your startup disk default back to OS X. In Windows, click the Boot Camp icon in the system tray. From the menu that appears, choose Restart in OS X. Start from OS X Recovery. My MacBook Pro is missing the MS Windows XP startup disk as an option in the System Preferences / Startup Disk. However if I hold down the Option key when I boot the computer both the OS X and Windows XP options are there and XP will boot fine if I select it there - any ideas? Mar 24, 2020 Click the Boot Camp icon. From the menu shown, choose Restart in macOS. If you haven't installed the latest Boot Camp updates, you might get the message ”Could not locate the OS X boot volume.' Or use Startup Manager as your Mac starts up: Restart your Mac from the Start menu in Windows. Jul 21, 2017  Hello, My dad installed Windows 10 on my mac using boot camp as I understood. When I try to log in to Macos or see if it is there it seems to be gone when I turn the computer. Jun 23, 2010  Internal Hard Disk does not show in Startup Disk options. Thread starter syrose. (and macos) not showing up in the startup disk control panel and bootcamp setup assistant yelling at me. Sure, i could hold down the option key at startup and choose mac.

Boot Camp Startup Mac


Shut down the MacBook Pro. Start it and immediately hold down Command, Option, P and R keys at the same time. Wait until you hear the startup chime for the third time before letting go.


Also, SMC reset may be needed (that usually doesn't fix a missing boot partition, though).

Camp


  • Shut down the computer.
  • Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
  • On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
  • Release all the keys and the power button at the same time.
  • Press the power button to turn on the computer.


Restart and hold down the D key to enter the Hardware Test. Follow the instructions.


When booted externally, use Finder's Go menu to open Utilities. Launch Disk Utility and look for any signs of your internal drive in the list of hard drives on the left. If you find it look for First Aid and try to use it on the disk.


Refer to the following to see if it takes you anywhere you haven't been yet.

Feb 10, 2017 3:37 PM

Installing Windows on Mac via Boot Camp is usually a straight forward process. Apple has created a Boot Camp Assistant app in macOS that guides users through the complete process. Even though the steps are simple, sometimes Boot Camp gives an odd error with disk partitions that is confusing to figure out. Here is how you can easily fix it.

Fixing Boot Camp startup disk issue

Mac Startup Disk Boot Camp Missing Download

The issue usually occurs if Windows installation fails and Boot Camp Assistant is unable to restore the partitions in their original state. If you get the below message, you know you’re facing this same issue:

The startup disk cannot be partitioned or restored to a single partition.

The startup disk must be formatted as as single Mac OS Extended (Journaled) volume or already partitioned by Boot Camp Assistant for installing Windows.

This issue can happen due to either of the following reasons:

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  • FileVault – you can disable it from System Preferences > Security & Privacy
  • Time Machine – this can be disabled from System Preferences > Time Machine
  • Failed Windows installation via Boot Camp Assistant

In either of these issues, you will have to remove the partition and retry installation. Your first reaction might be to delete the new Boot Camp partition so that you can restart the installation process. However, when you go to Disk Utility to try and delete the Boot Camp partition, you will notice that the (-) isn’t active anymore. You get the below message:

You can not remove this volume because the previous volume can not be resized.

While this seems kind of an odd situation to be in, the solution is pretty simple. You do not need to open up Terminal and use Diskutil, just follow these steps:

  • In Disk Utility, you will notice that there is an 8 GB partition next to the Boot Camp volume. This volume is called OSXRESERVED. Select it, and click the minus button.
  • Once it’s removed, click on the BOOTCAMP volume and you will see that the minus button is active again. Click it to remove the volume.

Mac Startup Disk Boot Camp Missing Windows 7

You should now be able to restart Windows installation using Boot Camp Assistant.

Mac Os Boot Disk

P.S. OSXRESERVED is created just for the Boot Camp installation process and is removed by macOS after Windows is installed. If, somehow, you still see it after installing Windows, you can follow the above steps to remove it and recover 8 GB storage space.