Here we wrote ALL NECESSARY STEPS, to explain how to install SSL & use HTTPS on WampServer  (just change red words to your actual path) :

1. Click in tray WAMP > Apache > Apache Modules and check socache_shmcb_module (wait for restart and do the same for ssl_module ).
2. Open CMD and execute these commands one-by-one (if asked, type i.e. abcd for password-phrase).

   cd c:\wamp\bin\apache\apacheX.X.XX\bin

   (echo [ my_req_ext ] && echo subjectAltName = DNS:localhost, DNS:*.localhost, IP:127.0.0.1) >> ..\conf\openssl.cnf

   openssl genrsa -aes256 -passout pass:ABCDE -out mypriv.key 2048 && openssl rsa -in mypriv.key -passin pass:ABCDE -out mypriv.key
   openssl req -new -x509 -nodes -sha1 -key mypriv.key -out mycert.crt -days 44444 -config ..\conf\openssl.cnf -extensions my_req_ext -subj "/C=US/ST=Distributed/L=Cloud/O=Cluster/CN=localhost"
   
   copy mypriv.key ..\conf\mypriv.key /y && copy mycert.crt ..\conf\mycert.crt /y

3. (Don’t close CMD). Now in Windows, go to folder: c:\wamp\bin\apache\apacheX.X.XX\conf, open httpd.conf and :
    A) Below line Define APACHE_DIR if there is not already Define SRVROOT, then add this:
   Define SRVROOT ${APACHE_DIR}/
    B) find & uncomment this line:
   Include conf/extra/httpd-ssl.conf
4. In conf\extra\httpd-ssl.conf file find
   <VirtualHost _default_:443>, and below it re-set :

   DocumentRoot "${INSTALL_DIR}/www"
   ServerName localhost:443
   ...
   ...
   SSLCertificateFile "${SRVROOT}/conf/mycert.crt"
   ...
   SSLCertificateKeyFile "${SRVROOT}/conf/mypriv.key"

5. Save file (before closing cmd, type httpd -t to ensure the syntax has no errors) and Restart WAMP-server.
6. We should disable warning for our “self-signed” certificate. In browser, go to address chrome://flags/#allow-insecure-localhost and set that to enabled, and restart Browser.

THAT’S ALL! Open any https:// address now (btw, if someone gets a red warning of browser, click “Proceed” there).

BTW: If anyone creates .bat file to automate all of this, I will integrate into article.
Let us know if that helped you.