Here Is basic build file to build executable from electron windows app.

var electronInstaller = require('electron-winstaller');
var resultPromise = electronInstaller.createWindowsInstaller({
    appDirectory: 'Your_electron_application_path',
    authors: 'Author Name',
    description: "Description"
});

resultPromise.then(() => console.log("Build Success!"), (e) => console.log(`No dice: ${e.message}`));