Mac Startup Disk Missing Windows Boot Camp

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By default, your Mac starts up from its built-in hard disk, but a startup disk can be any storage device that contains an operating system compatible with your Mac. For example, if you install macOS on an internal or external drive, your Mac can recognize that drive as a startup disk. You can then follow the steps in this article to start up from it.

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  1. Feb 22, 2010  Change Mac Startup Disk to Boot into Mac OS X after Installing Windows. On Feb 22, 2010. When you create partition on Intel based Mac through BootCamp to install Windows OS then this newly installed operating system became the default OS and then whenever you start Mac it boots from Windows OS.
  2. Install Windows 10 on an external HDD or SSD with Boot Camp under macOS Catalina (10.15). I needed this for the final parts of the Windows setup before the touch-pad and mac keyboard worked.
  3. 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. You can also start your Mac from OS X Recovery or Internet Recovery if your Mac was manufactured after 2011. To start your.
  4. Using Boot Camp makes you more convenient to install Windows on a Mac. Download and use Boot Camp but Boot Camp icon suddenly disappeared, you do not know how to retrieve it in this article Taimienphi.vn have synthesized a number of methods to help you do.

Mac Startup Disk Missing Windows Boot Camp Windows 7

Use Startup Disk preferences

When you use Startup Disk preferences to select a startup disk, your Mac starts up from that disk until you choose a different one.

  1. Choose Apple menu  > System Preferences, then click Startup Disk.
  2. Click the lock and enter your administrator password.
  3. Select your startup disk, then restart your Mac.

If you see a message that your security settings do not allow this Mac to use an external startup disk, check the External Boot setting in Startup Security Utility.

Use Startup Manager

When you use Startup Manager to select a startup disk, your Mac starts up from that disk once, then returns to using the disk selected in Startup Disk preferences.

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  1. Press and hold the Option (Alt) key immediately after turning on or restarting your Mac.
  2. Release the Option key when you see the Startup Manager window.
    If your Mac is protected by a firmware password, you can release the key when you're asked to enter the password.
  3. Select your startup disk, then click the arrow under its icon, or press Return.
    If you press and hold the Control key during this step, your selection is saved in Startup Disk preferences, so it persists until you change it.

If your Mac is using OS X Lion 10.7.3 or later, you can also use this method to start up from your Time Machine backup disk. Startup Manager identifies your Time Machine backup as ”EFI Boot.”

If you can't select your startup disk or start up from it

Check for these possibilities if you can't see your disk in Startup Disk preferences or Startup Manager, or your Mac won't start up from it.

Check for a compatible operating system on the startup disk

Make sure that your startup disk is using a version of macOS that is compatible with your Mac.

To start up from an external disk with macOS Catalina 10.15 or later, the disk must connect via USB-A, USB-C, or Thunderbolt, not FireWire.

Check startup security settings

Mac startup disk missing windows boot camp external drive

If you're using a Mac that has the Apple T2 Security Chip, check the settings in Startup Security Utility. These settings determine whether your Mac can start up from another disk.

Check for Option ROM firmware

If you're in Startup Manager and can't see a third-party startup disk, the startup disk could be using Option ROM firmware. To enhance system security, Mac computers with up-to-date software don’t show devices that use Option ROM firmware until you load their firmware. To do that, press Option-Shift-Command-Period while in Startup Manager. If your startup disk appears, do that each time you want to start up from it or from another disk connected to it.

Startup

Mac Windows Boot Disk

If you're using a firmware password, the ability to load Option ROM firmware is disabled as an additional security protection.

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