Magento scripts that resets all products "use default values" setting of the admin store view. This script was created for a site that had thousands of products with deselected "Use Default Values" checkboxes in differente store-views

ResetDefaultValues.php

<?php
// Author: @kayintveen
// Credits: Microdesign B.V
// Created November 2015
//=====================================

// Enable Error Reporting
error_reporting(E_ALL);
ini_set('display_errors', '1');

// Init Magento pointing to the Mage.app file
require_once 'app/Mage.php';

// Choose which storeview to select.
Mage::app()->setCurrentStore(Mage_Core_Model_App::ADMIN_STORE_ID);

//Prevent time-outs
set_time_limit(0);

// Function to set values
function useDefaultValueCallback($args){

    // change to the ID of your french store view
    $specificStoreViewId = 1;
    $product = Mage::getModel('catalog/product');
    var_dump($args['row']);
    $product->setData($args['row']);
    $product->setStoreId($specificStoreViewId);
    // change according to your needs
    $product->setData('url_key', false);
    $product->setData('status', false);
    $product->setData('visibility', false);
    $product->setData('description', false);
    $product->setData('short_description', false);

    $product->setData('eancode', false);
    $product->setData('name', false);

    
    

    $product->save();

}

  // Selecting the products and executing function
	$products = Mage::getModel('catalog/product')->getCollection()->addFieldToFilter('entity_id', array('gt' => 1));
	Mage::getSingleton('core/resource_iterator')->walk($products->getSelect(), array('useDefaultValueCallback'));
	

// Done, Cheers!