Remember that the correct file to be configured in this situation is not the httpd.conf in the phpMyAdmin alias, but in bin/apache/your_version/conf/httpd.conf
.
Look for the following line:
DocumentRoot "c:/wamp/www/"
#
# Each directory to which Apache has access can be configured with respect
# to which services and features are allowed and/or disabled in that
# directory (and its subdirectories).
#
# First, we configure the "default" to be a very restrictive set of
# features.
#
<Directory />
Options FollowSymLinks
AllowOverride None
Order deny,allow
Allow from all
</Directory>
Make sure it is set to Allow from all
...
If not, phpMyAdmin might even work, but not your root and other folders under it. Also, remember to restart WAMP and then put online...
This solved my headache.