The macOS Utilities window will now appear.After hearing the startup sound, press the CMD and R keys.Get an external hard drive and connect it to your Mac.About Outbyte, uninstall instructions, EULA, Privacy Policy. Here’s what you should know: your Mac has a built-in Disk Utility, which can be accessed before startup. Now, you might be wondering if it is possible to create a backup of your data, especially that your Mac is not even booting. That way, you can easily retrieve or recover your important documents and files in case something goes wrong. Backup, Backup, Backup!īefore you proceed with fixing the problem, it is best that you back up all your data first.

But before we do that, you better have a backup of all your data. Situations like this can be very annoying, especially if you have critical and important files stored on the “unmountable” hard drive.įret not, because we will teach you what to do if your MacBook Pro won’t mount its startup disk. That means if your Mac or MacBook Pro can’t mount its startup disk, it is likely that you will experience problems, like your computer gets stuck on the login screen or it does not boot at all.

Macintosh HD, or the MacBook internal hard drive, is basically the startup drive of most Apple computers. Please review EULA and Privacy Policy Outbyte.

In order to use the program, it needs to be purchased and activated first.ĭeveloped for macOS See more information about Outbyte and uninstall instructions. Clean and Optimize Your Mac to Improve Performance with Outbyte macAries

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