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This will upgrade your computer's operating system and will automatically reboot your computer. It will take 30-45 minutes to complete, during which time you will be unable to use the computer.
| Step | What to Do | What It Looks Like | ||
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| 1 | 2 | 3 | 4Close any open applications and save all your work. Connect your laptop to power and an Ethernet network connection. | |
| 2 | Open the Self Service application. | How to Use the Self Service Application on Mac | ||
| 3 | Find the "Install macOS" application and click "Install" You will see either High Sierra or Mojave depending on which is compatible with your computer. |
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| 4 | The installer will check if your computer already has the necessary files. If not, it will download them. This can take 5-10 minutes to download. Do not disconnect from power or Ethernet during this time. |
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| 5 | Once it checks for the necessary files, the installation will begin and take several minutes to prepare your computer. |
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| 6 | Your computer will reboot to complete the installation. After reboot, it will take 30-45 minutes to complete. Once complete, you will return to the computer's login screen. |
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