Make sure your database in phpMyAdmin is empty (no tables, views, routines, or triggers).

If it’s empty and you still get the error, then it’s a filesystem issue.

If you are using XAMPP:

1. Stop the MySQL server from the XAMPP control panel.

2. Go to: C:\xampp\mysql\data\

3. Find the folder with your database name.

4. Delete that folder manually.

5. Start MySQL again.

   Your database will now be removed.