Here i will show how to set or change default page in Apache. Apache default page is very easy to configure, we just need to configure Apache conf file in following location

Apache file path/conf/httpd.conf

Make the following changes in httpd.conf file. Change index.html or index.php to whatever default page you want.

# DirectoryIndex: sets the file that Apache will serve if a directory
# is requested.
<IfModule dir_module>
    DirectoryIndex index.html index.php

Restart Apache ~ Done.