Quit Disk Utility to return to macOS Utilities.

If Disk Utility can’t repair the disk, you will need to reinstall macOS. And if the disk repairs successfully, don’t forget to restart your Mac. Click Run.Īfter all the steps are completed, repeat for the next volume up. Next, click the down arrow next to Macintosh HD, select the volume, and choose First Aid in the toolbar. Now that you’ve entered the recovery mode, choose Disk Utility from macOS Utilities and click View. Follow on-screen instructions and press Next after any action you take.

You may be asked to select a user and enter their administrator password.

Click the Gears icon (Options) and hit Continue.

Keep it pressed until you see startup options.

When turning on your Mac, press and hold the Power button.

Don’t release the keys until you hear Mac’s startup sound or until the Apple logo appears.

You’ll need to boot your Mac in recovery mode and try to repair the disk with Disk Utility.

Once your Mac has booted, ensure the correct startup disk is selected (see below).Ī Mac with Apple silicon will reset NVRAM automatically.

When your Mac plays a startup sound, release the keys after it sounds a second time (If your Mac has a T2 security chip, release the keys after the Apple logo appears and disappears a second time.).

Press the power button and hold down Command-Options-P-R.

When this happens, the first thing you should do is reset your Mac’s NVRAM. If you see the question mark for a few seconds What to do if there is no startup disk on your Mac Here are a couple of things you can do to fix it. Such an error happens when your Mac cannot find a startup disk.

But it can also stay there, not letting your Mac boot. But to help you do it all by yourself, we’ve gathered our best ideas and solutions below.įeatures described in this article refer to the MacPaw site version of CleanMyMac X.Īre you trying to boot up your Mac and notice the dreaded question mark inside a folder icon on the screen? Sometimes it appears for only a few seconds, and then your Mac boots normally. So here’s a tip for you: Download CleanMyMac to quickly solve some of the issues mentioned in this article.

Startup disc full on macbook air