President Forever 2016 is now President Infinity. See here.
If you are an owner of President Forever 2016, you are eligible for an upgrade to President Infinity. Simply go to the redownload page here and request a redownload. Then download and install from the President Infinity link in the redownload e-mail.
im using windows 10 how do I play the game full screen
Full screen isn’t currently an option, but it is planned to be added with the Autumn 2018 update.