teracas.blogg.se - How to format mac hd disk new

If the disk you’re trying to erase is badly damaged, Disk Utility may not be able to access the information needed to erase it. If you want to erase your start-up disk, you’ll need to either boot in Recovery mode or boot from an external USB disk or USB stick.

The disk you’re trying to erase is the disk you booted from.

There are a few reasons why the erase process may have failed on your Mac. Whatever the reason is, I’ll show you how to deal with it. That could happen because the Disk Utility erase greyed out or unable to complete the task. Occasionally, however, Mac users run into a problem: Disk Utility doesn’t let erase a disk. You can use it to partition, repair, completely erase, or re-format a disk. But to help you do it all by yourself, we’ve gathered our best ideas and solutions below.ĭisk Utility is one of the most valuable tools in your Mac’s Utilities folder. So here's a tip for you: Download CleanMyMac to quickly solve some of the issues mentioned in this article.