trouble when running composer – SEO

On my Symfony project, I have some error when running composer update/install command:

This is the error occured when I run composer:

Fatal error: Allowed memory size of 1073741824 bytes exhausted (tried
to allocate 524288 bytes) in
phar://C:/ProgramData/ComposerSetup/bin/composer.phar/src/Composer/Util/RemoteFilesystem.php
on line 189

As you can see I run the prompt command as administrator, but even if I run the command as not admin, the same error occured.

I also check the page here in order to set the change they recommand me to run composer without troubles.

I am on Windows 10 and using wamp server for my project.
So in my php.ini i wrote this line: memory_limit = 2G

I restart wamp and so my computer in order to be sure. And when I run the command php -r "echo ini_get('memory_limit').PHP_EOL;" it always show 128M.

If I run composer diagnose command this is what I get from the prompt command :

As you can see here, composer show me an error on my composer.json.
This my composer.json file:

{
    "name": "symfony/framework-standard-edition",
    "license": "MIT",
    "type": "project",
    "description": "The "Symfony Standard Edition" distribution",
    "autoload": {
        "psr-4": { "": "src/" }
    },
    "minimum-stability": "dev",
    "prefer-stable": true,
    "require": {
        "php": ">=5.3.9",
        "symfony/symfony": "2.7.*",
        "doctrine/orm": "^2.4.8",
        "doctrine/doctrine-bundle": "~1.4",
        "symfony/assetic-bundle": "~2.3",
        "symfony/swiftmailer-bundle": "~2.3",
        "symfony/monolog-bundle": "~2.4",
        "sensio/distribution-bundle": "~4.0",
        "sensio/framework-extra-bundle": "^3.0.2",
        "incenteev/composer-parameter-handler": "~2.0",
        "friendsofsymfony/user-bundle": "~2.0",
        "knplabs/doctrine-behaviors": "~1.1",
        "friendsofsymfony/jsrouting-bundle": "^1.5",
        "jms/serializer-bundle": "^1.1",
        "sonata-project/seo-bundle": "^2.0",
        "genemu/form-bundle": "2.2.*",
        "elao/web-profiler-extra-bundle" : "~2.3@dev",
        "maxmind/geoip": "dev-master",
        "a2lix/translation-form-bundle": "^2.0",
        "ircmaxell/password-compat": "^1.0",
        "sonata-project/translation-bundle": "^1.0",
        "sp/bower-bundle": "^0.11.0",
        "ensepar/html2pdf-bundle" : "~2.0"
    },
    "require-dev": {
        "sensio/generator-bundle": "~2.3",
        "doctrine/doctrine-fixtures-bundle": "^2.3"
    },
    "scripts": {
        "pre-install-cmd": [
            "BetonDirect\EntityBundle\HerokuDatabase::populateEnvironment"
        ],
        "post-install-cmd": [
            "Incenteev\ParameterHandler\ScriptHandler::buildParameters",
            "Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::buildBootstrap",
            "Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::clearCache",
            "Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::installAssets",
            "Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::installRequirementsFile",
            "Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::prepareDeploymentTarget"
        ],
        "post-update-cmd": [
            "Incenteev\ParameterHandler\ScriptHandler::buildParameters",
            "Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::buildBootstrap",
            "Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::clearCache",
            "Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::installAssets",
            "Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::installRequirementsFile",
            "Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::prepareDeploymentTarget"
        ]
    },
    "config": {
        "bin-dir": "bin"
    },
    "extra": {
        "symfony-app-dir": "app",
        "symfony-web-dir": "web",
        "symfony-assets-install": "hard-copy",
        "incenteev-parameters": {
            "file": "app/config/parameters.yml",
            "env-map": {
                "database_driver": "DATABASE_DRIVER",
                "database_host": "DATABASE_HOST",
                "database_port": "DATABASE_PORT",
                "database_name": "DATABASE_NAME",
                "database_user": "DATABASE_USER",
                "database_password": "DATABASE_PASSWORD"
            }
        },
        "branch-alias": {
            "dev-master": "2.7-dev"
        }
    }
}

I also disable in my wamp ,server xdebug zend extension, but it does not work too (same problem when I change the memory_limit, nothing change).

If you have some issues, I appreciate.