![mac os x utilities screen at startup mac os x utilities screen at startup](https://cdn-60c35131c1ac185aa47dd21e.closte.com//wp-content/uploads/2016/02/disk-utility-1.jpg)
You can eliminate Macbook pro grey screen of death by Safe Boot. From the left panel, pick the inbuilt Mac drive and press Verify Disk on the bottom-right part of the screen. The order of repair in this example was Macintosh HD - Data, then Macintosh HD, then Container disk4, then APPLE SSD. On OS X Utilities popup, choose Disk Utility.
![mac os x utilities screen at startup mac os x utilities screen at startup](https://i.stack.imgur.com/PZ6yd.jpg)
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. If the issue returns after restarting, reinstall macOS. After this, you can choose Re-install OS X and perform a clean install. From there you can reformat your hard disk.
#Mac os x utilities screen at startup mac os x#
If Disk Utility found errors and repaired them, restart your Mac. Boot from the Mac OS X Snow Leopard Install DVD, and from the 'OS X Utilities' menu, choose 'Disk utility'. If Disk Utility found no errors, reinstall macOS. If Disk Utility found errors and repaired them, restart your Mac. Use Disk Utility to repair your startup disk. Then use Disk Utility to repair your startup disk. If your Mac successfully started up from macOS Recovery, you should see a utilities window that includes Disk Utility.
![mac os x utilities screen at startup mac os x utilities screen at startup](https://i.ytimg.com/vi/-LzgzWrYr0I/maxresdefault.jpg)