A WordPress Multisite setup allows you to run multiple WordPress sites from a single installation. Each site can have its own themes, plugins, and users, while sharing the same WordPress core files. Below is a simple 3-step guide to enable multisite on your local WAMP environment.

Open your WordPress folder and navigate to the directory where WordPress is installed. Locate and open the wp-config.php file in a code editor (e.g., VS Code, Notepad++).

Add the following line above the line that says “/ That’s all, stop editing! Happy publishing. /”:

define(‘WP_ALLOW_MULTISITE’, true);

This tells WordPress that you want to enable Multisite features.

Save the file and refresh your WordPress dashboard.
You’ll now find a new menu option under Tools → Network Setup.

Deactivate all active plugins temporarily.
Go to Plugins → Installed Plugins, select all, and choose Deactivate from the bulk actions dropdown.
(You can reactivate them later.)

Go to Tools → Network Setup.
This page allows you to configure your network.

Choose your network type:

• Sub-directories (e.g., localhost/yourwordpressfolder/site1)
• Sub-domains (e.g., site1.localhost) — requires DNS configuration, so for WAMP/local, sub-directories are easier.

Enter your network details:

• Network Title: e.g., “My Local Multisite Network”
• Admin Email Address: your admin email.

Click “Install”.
WordPress will now generate extra configuration lines for both your wp-config.php and .htaccess files.

Follow the on-screen instructions to:

• Add the generated lines into your wp-config.php (just above the “That’s all…” line).
• Replace your existing .htaccess rules with the ones provided.
  (If you don’t see a .htaccess file, enable hidden files or create one manually in your WordPress root directory.)

Save both files and log back in to WordPress.

1. Once logged in again, you’ll notice a new “My Sites” option in the top admin bar.
2. To create a new site:
   • Go to My Sites → Network Admin → Sites.
   • Click “Add New”.
3. Fill in the site details:
   • Site Address: e.g., site2
   • Site Title: e.g., “Site Two”
   • Admin Email: the user responsible for this site.
4. Click “Add Site.”
   The new site will appear under your network list.
5. You can now manage:
   • Themes (Network Admin → Themes)
   • Plugins (Network Admin → Plugins)
   • Individual site dashboards.

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From here, you can:

• Add multiple sites for testing or client projects.
• Manage all sites from one dashboard.
• Control which themes or plugins are available across the network.