After you download the installation file, run it as an administrator. For example, right-click the installation file, and then select Run as administrator.
If you see the error shown in the following image, or you see a User Account Control window that doesn't accept your credentials, then you don't have administrator rights on your computer. Sign in as a user that has administrator rights, and then repeat from step 1.
Installation error that appears if you don't have administrator rights
Option 2: Steam
If you have Steam installed on your computer, open the Steam Client, browse to the store, search for ENGAGE, and then add it to your library.