Translations:Manual:Upgrading/86/en

On Linux if you get an error try performing same command as root (sudo php maintenance/update.php). Note for simple installations on Windows (e.g. with $xampp): First make sure that your web server (such as Apache) and your database (such as MySQL) are running. Then run update.php: right-click it, select Open With, and browse to PHP.exe. The resulting command prompt window will likely autoclose when the schema upgrade completes.