wamp64 localhost “Unable to connect” (no replies)

Apologies if this is a repeated query; but no solution found in last 4 days.

Windows 10 ... Wamp64 ... needing to create Virtual hosts to practice my HTML/CSS/PHP and Grid Layouts.

Below is what I THINK might be the problem file (wamp64\bin\apache\apache2.4.27\conf\extra\httpd-vhosts.conf) ...

# Virtual Hosts
#
<VirtualHost *:80>
ServerName localhost
ServerAlias localhost
DocumentRoot "${INSTALL_DIR}/www"
<Directory "${INSTALL_DIR}/www">
Options +Indexes +FollowSymLinks +MultiViews
AllowOverride All
require all granted
</Directory>
ErrorLog "logs/localhost-error.log"
CustomLog "logs/localhost-access.log" common
LogLevel debug
</VirtualHost>
#
#
<VirtualHost *:80>
DocumentRoot "c:/wamp64/www/propokeruk"
ServerName propokeruk
<Directory "c:/wamp64/www/propokeruk">
Options +Indexes +Includes +FollowSymLinks +MultiViews
AllowOverride All
Require local
</Directory>
ErrorLog "c:/wamp64/logs/propokeruk-error.log"
AccessLog "c:/wamp64/logs/propokeruk-access.log" common
LogLevel debug
</VirtualHost>
#
#
<VirtualHost *:80>
DocumentRoot "c:/wamp64/www/tester"
ServerName tester
<Directory "c:/wamp64/www/tester">
Options +Indexes +Includes +FollowSymLinks +MultiViews
AllowOverride All
Require local
</Directory>
ErrorLog "c:/wamp64/logs/tester-error.log"
AccessLog "c:/wamp64/logs/tester-access.log" common
LogLevel debug
</VirtualHost>
#

not running SKYPE or IIS

Is there anything else I should be looking at ?