To get started, you'll need two things, the installer and an account. You can get both from the Core website. As soon as you are registered and logged-in, you'll find a link to download the installer in the user dropdown menu in the upper-right corner.
If you don't see a verification email for your Core account in your inbox after registering, please check your spam folder. If you need further help troubleshooting, please join the Core Creator Discord.
Note: It is recommended to install Core on the default path. Please do not direct Core to install in "Program Files" or "Program Files (x86)".