Step 1: Go to the Academic Software page for IntelliJ IDEA and Click the green button, ‘Download Explorer for ArcGIS’ to download the software.
Step 2: Open the .exe installer file from your downloads folder and click Next to start the installation.
Step 3: Click Next to install the software in the standard location. You can also choose to change the destination folder.
Step 4: Choose extra options, like a desktop shortcut, right-click context menus or file associations.
Step 5: Click Install to start the installation.
Step 6: Check the box to run the program and click Finish.
Step 7: Import previous settings if necessary. Click OK.
Step 9: Choose if you want to share anonymous user data.
Step 10: Choose your theme. A darker theme is easier on the eyes, especially in the dark.
TIP: to run the program now with default settings, you can click 'Skip Remaining and Set Defaults' bottom left. If you want to select more options, click Next.
Step 11: Choose which plugins you want to customize or disable.
Step 12: Choose from these optional plugins to install. Then click 'Start using IntelliJ IDEA'. The program is now installed and ready to use.