Finally comes the part where we put it all together. For the most part, Joomla installs itself and the only thing which needs to be done is to supply the installer with what we just set up above.

1. In the folder location of where your Joomla files are kept (i.e. your Joomla site’s root), open the file “globals.php” in Notepad. Keep this folder open, we will come back to it later.
2. Locate the line reading (~line 24):

   define( 'RG_EMULATION', 1 );

   and change it to read

   define( 'RG_EMULATION', 0 );

3. Save and close the “globals.php” file.
4. Open a browser to your Joomla site’s URL. The Joomla Web Installer should automatically come up.
5. Every value under all three sections of the Preinstallation Check should come up in green. If not you need to address these accordingly. If you follow the guides on this site, you should not have any issues here. If everything is green, click Next.
6. Read the License and click Next.
7. In Step 1 of the installer, fill out the values accordingly:
   • Host Name: This is the name of your MySQL Server. If MySQL is installed on the same machine as IIS which hosts this Joomla site, enter “localhost”, otherwise enter the domain name or IP address of your MySQL Server which hosts your Joomla database.
   • MySQL User Name: MySQL user name set up earlier.
   • MySQL Password: Password for the respective user name.
   • MySQL Database Name: Name of the MySQL database set up earlier.
   • MySQL Table Prefix: This is appended to the front of all the Joomla database table names. The default value is recommended.
   • Drop Existing Tables: This option will completely destroy any existing Joomla database tables using the MySQL Table Prefix defined above.
   • Backup Old Tables: Use this option if you already have a Joomla site which uses the same MySQL Table Prefix defined above.
   • Install Sample Data: This will include sample menu’s and content in your Joomla database. For a production site, this should not be checked.

   Click Next once you have completed all these fields.
   

8. On Step 2, enter your site’s name and click Next. For example, this site is titled “Joomla On IIS”.
9. In Step 3, set up your site for the web:
   • URL: The web address used to access your site. This should have been filled in automatically based on the URL used to access the installer. You can change this as needed.
   • Path: The physical location on the web server where your Joomla files are located. This should have been filled in automatically.
   • Your E-mail: The Joomla site admin’s email address.
   • Admin password: This is the password which we be used to access the administration panel.
   • File Permissions: Select the “Don’t CHMOD files” option.
   • Directory Permissions: Select the “Don’t CHMOD directories” option.

   Click Next once you have completed all these fields.
   

10. In Step 4, you should get a confirmation message. Minimize this window and go back to the root folder of your Joomla site from the beginning step.
11. Rename or delete the “installation” folder. I typically rename it to “_installation”.
12. Back on the browser window, click the Administrator link in the upper right corner.
13. Log in to your new Joomla site using the user name “admin” and the password you set up earlier.

There you have it. Joomla is set up and ready to go. You can log into your site’s administration section and start to build your site.

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