With the beginning of the month Apple is testing a new desktop platform macOS High Sierra. To load the operating system in any compatible computer in the presence of a developer account, or the torrent file. But how to get back with macOS on macOS High Sierra Sierra?
The first innovation of the OS — file system, Apple (APFS), which has high performance, reliability and safety. It significantly speeds up your work with files and folders, is designed to ensure data integrity in case of power outages or system failures. Another important innovation — a built-in support for video format HEVC (H. 265), which allows to achieve comparable with H. 264 quality while reducing the file size to 40%.
Other namalowane changes macOS High Sierra: the technology of low-level hardware access API Metal 2, support for virtual reality, and improved built-in apps – Photos, Safari, Mail and others.
If you are not yet ready to accept such innovations on your Mac or previous OS seems more stable, the manual rollback with macOS on macOS High Sierra Sierra for you.
1. Restore the backup of the macOS Sierra
If, before the transition to macOS High Sierra (10.13) you have saved the backup in Time Machine to revert on macOS Sierra (10.12) and OS X Yosemite (10.11) can be a few minutes.
Step 1: connect the drive to your Mac and save a backup using Time Machine. Alternatively, you can transfer data manually.
Step 2: Find the Time Machine drive on which you stored the backup macOS Sierra. Connect it to your computer.
Step 3: Restart the computer by holding down keys Command+R. You will see a menu to restore your operating system.
Step 4: In the panel of OS X Utilities, select “Restore from Time Machine backup”.
Step 5: Next, according to the instructions on the page, the “Restore from Time Machine” click continue, and then specify the source disk with a backup of macOS Sierra.
Step 6: Select backup: in the case of Sierra macOS OS version should be 10.12.x. Click Continue. On the next screen specify the startup disk of your Mac to restore backup and click “Recover”.
Congratulations, your computer has macOS Sierra!
2. A “clean” install macOS Sierra
If you have no backups, Sierra macOS, you should install the operating system “clean”. With this, you can create a bootable USB-stick.
This method is preferable in terms of reliability of the operating system. Applications installed in the environment of macOS Sierra will operate at peak performance. The method provides for the preservation of important data on your Mac.
3. Remove and reinstall macOS Sierra
Step 1: make Sure your Mac is connected to the Internet. Open in the top Apple menu bar and select Restart.
Step 2: when restarting, hold down the keyboard Command+R to open the recovery menu of the OS.
Step 3: Select Disk utility in the Utility app OS X and click Continue.
Step 4: Select boot disk and click the Erase tab.
Step 5: Select the computer name, specify the format Mac OS Extended (journaled).
Step 6: Click Erase.
Step 7: go Back to the main menu OS X Utilities and click Reinstall OS X. the Process will look like a regular installation of macOS Sierra.
After reboot you will have a computer running macOS Sierra. You can now perform a standard set of actions, including checking and installing updates and downloading programs.