Thanks J. However, you don't need to run Cron via the browser. Moodle has a command-line cron script, \admin\cli\cron.php, that is perfect for automated running via a Windows Scheduled Task. Using that cli script you don't need to invoke a web browser, so it's much better.
And https://moodle.org/mod/forum/discuss.php?d=139263 if you want to log the cron output.