![]() Enter the password that you use to log in to your Mac, then click OK. An erase assistant asks you to sign in with your administrator credentials. ![]() Don't see this option?Īfter choosing Erase All Content and Settings, follow these steps to continue: From the System Preferences menu in the menu bar, choose Erase All Content and Settings.From the Apple menu in the corner of your screen, choose System Preferences.From the Apple menu in the corner of your screen, choose System Settings.Learn what to do if you can't use Erase All Content and Settings. This feature requires macOS Monterey or later and a Mac with Apple silicon or the Apple T2 Security Chip. Try the steps here to see if they resolve the issue: Erase your Mac and reset it to factory settings - Apple Support We understand you're having issues with erasing your Mac. Thank you for reaching out to Apple Support Communities, and we'll be happy to help in any way we can. I think it should be some kind of security protocol protecting the partition area, but during the update something happened, and now the system is working on wrong way. Some more important information: All the SSD tests told me that SSD drive is healthy!!!! And SIP is disconnected in recovery mode. I have made a boot disk with Ubuntu, and tried to make a format from there, but the Ubuntu was not able to write to disk. And now I can not erase disk from anywhere. But on such a way that even the internal apple tools: terminal commands, diskutil commands can not override this. That was the point where I thought that the partition area and maybe the whole disk is in read-only mode. The most interesting was that after a direct dd command to disk0 the APFS parameters and partition data was not changed at all. after the terminal commands it looked like the Volume disappeared from diskutil, but after a reboot, everything is like at the beginning. I have made a complete backup of my disk0 with dd to another disk.Īfter that I have tried to delete and recreate APFS Volumes delete APFS container, but nothing happened in my APFS descriptors. I have made all normal steps, boot disk creation, diskutil first aid, terminal commands. After the last security update from Apple my High Sierra MacBook Pro was not able to boot. It is somehow write protected for apple tools too. Can not erase or modify any parameter of my internal ssd disk.
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