1. Open the official website and download the second-order Rubik's Cube installation package.

2. Unzip the installation package and run the installer.

3. Select the installation path and components in the installation wizard, and then click Next to continue the installation.

4. Select the installation type (generally choose full installation) and click "Next" to continue the installation.

5. Wait for the installation to complete, and then click Finish to exit the installation wizard.