Thunderbolt, USB, or FireWire symbolĪ large Thunderbolt, USB, or FireWire symbol against a dark background means that your Mac is in target disk mode. If your previously owned Mac shows an Activation Lock window that asks for someone else's Apple ID, the previous owner may need to remove Activation Lock for you. Learn what to do if you forgot your login password. You can leave the current Windows installation intact and erase the macOS partition in macOS Recovery. You might see a default desktop picture in the background, which might change to your chosen desktop picture when you select your account. If FileVault is turned on, this also unlocks your disk. There seems to be no way to reboot back into MacOS from Windows 10 EFI unless you command + P + R it when using a non-flashed GPU. Just turn on your Mac, hold the Option key after the startup chime and release it after Startup Manager appears. That's why I wrote this: In Windows 10 EFI, selecting 'Restart into Mac OS X' from boot camp just reboots into windows. Login windowĪt the login window, enter your user account password to log in to your Mac. macOS’ built-in Startup Manager allows you pick a volume to start your Mac up from at boot time, which temporarily overrides your startup disk defaults set in System Preferences. Enter the four-digit or six-digit passcode to continue. Your Mac asks for a PIN code when it has been remotely locked using Find My because the owner thinks the Mac is lost or stolen. If your Mac is using a firmware password, the lock icon appears when you try to start up from another disk or volume, such as an external drive or macOS Recovery. Learn what to do if your Mac starts up to an exclamation point in a circle. Learn what to do if your Mac starts up to Options with a gear icon, also known as startup options. Restart the Mac and hold down the Option key, release the key and choose macOS from the boot menu. Learn what to do if your Mac starts up to a blank screen, such as an empty gray, black, or blue screen. Learn what to do if your Mac starts up to an Apple logo or progress bar. Learn what to do if your Mac can't start up from macOS Recovery. Globe with warning symbolĪ globe with a warning symbol (exclamation point) means that your Mac tried to start up from macOS Recovery over the internet, but couldn't. Learn what to do if your Mac starts up to a circle with a line through it (prohibitory symbol). Make sure that Boot Camp is set to reboot back into macOS by default, as shown here: However, even when Boot Camp is set to boot into Mac by default, it occasionally ignores the brief and boots back into. Learn what to do if your Mac starts up to a question mark. Right-click on that and select the Boot Camp control panel, as shown: When you’ve done that, you should see a screen like the one below. See Startup key combinations for Mac - Apple SupportĪ less desirable option is to reset PRAM by holding down Command-Option-P-R which will reset the Mac to boot from the first available Mac partition.If your Mac doesn't start up all the way or needs you to do something during startup, it might stop at one of these screens. Also, you do not have to disable System Integrity Protection. When installing Windows, you can create a new partition for the installation of Windows. That is to use X which will instead boot from the default Mac partition. If use the diskutil command to delete the BOOTCAMP partition, the partitioning will change from hybrid to protective. It probably also needs to cope with encrypted APFS volumes as well even if it does not necessarily need to be able to unlock and mount one.įor what it's worth there is supposed to be another boot time keyboard shortcut one can use instead of the commonly used Option key. It is not a matter of merely listing the APFS volume, in order for this to be possible it has to look inside the APFS container and check it genuinely is a bootable volume, this entails the Boot Camp control panel having a detailed understanding of the APFS volume structure. The specific cause of the problem is that your Mac is now running APFS rather than HFS and the current Boot Camp control panel does not yet understand how to access APFS volumes, it therefore does not 'see' them and therefore does not list them as available choices to boot from.Īpple will I am sure eventually issue an updated set of Boot Camp software for Windows 10 to resolve this but less certain is whether they will do so for older Windows versions e.g. As answered it will only work again once Apple issue an update. I have removed my Boot Camp partition and windows and repeated the Windows installation process two more times to make I had not made and error in the installation process. The Restart in macOS question has been asked and answered. The only way I can restart in MacOS is to shut down and restart using the 'Option' key and select Macintosh to start up.
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