You are likely to see this message if you are installing the 32-bit version of Artisan 4 on a 64-bit computer. You need to uninstall Artisan 4, and download and install the correct version. To find out if your system is 32-bit or 64-bit, click <a href=”faq/q-how-do-i-know-if-i-have-a-32-bit-or-64-bit-version-of-windows/” target=”_blank”>HERE</a>.