![]() ![]() If you used Disk Utility from macOS Recovery, you can now restart your Mac: choose Apple menu > Restart. The order of repair in this example was Macintosh HD - Data, then Macintosh HD, then Container disk4, then APPLE SSD. Keep moving up the list, running First Aid for each volume on the disk, then each container on the disk, then finally the disk itself. ![]() Make sure that your preferred startup disk is selected in Startup Disk preferences. ![]() If the question mark appears only momentarily before your Mac starts up normally: Reset NVRAM. If you're asked for a password to unlock the disk, enter your administrator password.Īfter Disk Utility is done checking the volume, select the next item above it in the sidebar, then run First Aid again. A folder with a flashing question mark means that your startup disk is no longer available or doesn't contain a working Mac operating system.If the button is dimmed and you can't click it, skip this step for the disk, container, or volume you selected.If there is no Run button, click the Repair Disk button instead.While in macOS Recovery, use Disk Utility to repair your startup disk. Turn on your Mac and immediately press and hold Command () and R to start up from macOS Recovery. In this example, the last volume on the disk is Macintosh HD - Data.Ĭlick Run to begin checking the selected volume for errors. If the question mark persists, follow these steps: Press and hold the power button on your Mac for up to 10 seconds, until your Mac turns off. For each disk that you're repairing, start by selecting the last volume on that disk, then click the First Aid button or tab. ![]()
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