{"id":1598,"date":"2025-07-22T08:57:58","date_gmt":"2025-07-22T06:57:58","guid":{"rendered":"https:\/\/www.antivirusedition.com\/blog\/?p=1598"},"modified":"2026-02-04T15:02:19","modified_gmt":"2026-02-04T14:02:19","slug":"avast-ou-windows-defender-le-match-securite-que-microsoft-ne-gagne-pas","status":"publish","type":"post","link":"https:\/\/www.antivirusedition.com\/blog\/avast-ou-windows-defender-le-match-securite-que-microsoft-ne-gagne-pas-1598.html","title":{"rendered":"Avast ou Windows Defender ? Le match s\u00e9curit\u00e9 que Microsoft ne gagne pas"},"content":{"rendered":"\n<p>En mati\u00e8re de cybers\u00e9curit\u00e9, deux noms reviennent souvent dans les conversations : <strong>Avast Antivirus<\/strong> et <strong>Windows Defender<\/strong>. Le premier est un acteur historique de la protection informatique, avec plus de 30 ans d&rsquo;expertise. Le second est l&rsquo;antivirus gratuit de Microsoft, int\u00e9gr\u00e9 nativement dans Windows. Si leur popularit\u00e9 est ind\u00e9niable, leurs performances et leurs fonctionnalit\u00e9s ne sont pas \u00e9quivalentes.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.antivirusedition.com\/blog\/wp-content\/uploads\/2025\/07\/Avast-ou-Windows-Defender-1024x1024.png\" alt=\"\" class=\"wp-image-1669\" srcset=\"https:\/\/www.antivirusedition.com\/blog\/wp-content\/uploads\/2025\/07\/Avast-ou-Windows-Defender-1024x1024.png 1024w, https:\/\/www.antivirusedition.com\/blog\/wp-content\/uploads\/2025\/07\/Avast-ou-Windows-Defender-300x300.png 300w, https:\/\/www.antivirusedition.com\/blog\/wp-content\/uploads\/2025\/07\/Avast-ou-Windows-Defender-150x150.png 150w, https:\/\/www.antivirusedition.com\/blog\/wp-content\/uploads\/2025\/07\/Avast-ou-Windows-Defender-768x768.png 768w, https:\/\/www.antivirusedition.com\/blog\/wp-content\/uploads\/2025\/07\/Avast-ou-Windows-Defender.png 1080w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Dans cet article comparatif complet, nous allons vous aider \u00e0 y voir plus clair. Pourquoi de nombreux utilisateurs choisissent-ils <strong>Avast plut\u00f4t que Windows Defender<\/strong> ? Quelles diff\u00e9rences en termes de s\u00e9curit\u00e9, de performance et de protection proactive ? Et surtout, <strong>lequel vous prot\u00e8ge le mieux en 2025<\/strong> ? Suivez le guide.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Windows Defender, une solution gratuite mais limit\u00e9e<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Une protection de base int\u00e9gr\u00e9e \u00e0 Windows<\/h3>\n\n\n\n<p><strong>Windows Defender<\/strong> (aujourd&rsquo;hui appel\u00e9 Microsoft Defender Antivirus) est install\u00e9 par d\u00e9faut sur tous les syst\u00e8mes Windows 10 et Windows 11. Il offre une protection basique contre les malwares, les virus et les tentatives de phishing.<\/p>\n\n\n\n<p>Ses principaux avantages :<\/p>\n\n\n\n<ul>\n<li><strong>Gratuit<\/strong> : pas besoin d&rsquo;acheter une licence ou de t\u00e9l\u00e9charger un logiciel tiers.<\/li>\n\n\n\n<li><strong>Int\u00e9gration native<\/strong> : fonctionne automatiquement sans configuration complexe.<\/li>\n\n\n\n<li><strong>Consommation de ressources mod\u00e9r\u00e9e<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p>C&rsquo;est une solution minimaliste qui suffit pour un usage tr\u00e8s occasionnel d&rsquo;Internet.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Les failles de Windows Defender<\/h3>\n\n\n\n<p>Malgr\u00e9 ses efforts d&rsquo;am\u00e9lioration, Windows Defender pr\u00e9sente plusieurs limitations :<\/p>\n\n\n\n<ul>\n<li><strong>D\u00e9tection plus lente des nouvelles menaces<\/strong> : Microsoft Defender repose principalement sur des signatures virales connues. Il peine \u00e0 identifier les attaques z\u00e9ro-day ou les comportements suspects plus subtils.<\/li>\n\n\n\n<li><strong>Peu de fonctionnalit\u00e9s avanc\u00e9es<\/strong> : pas de VPN, pas de protection de la webcam, pas de sandbox, pas de contr\u00f4le parental pouss\u00e9.<\/li>\n\n\n\n<li><strong>R\u00e9sultats irr\u00e9guliers dans les tests ind\u00e9pendants<\/strong> : selon <a href=\"https:\/\/www.av-test.org\/fr\/\">AV-TEST<\/a> et <a href=\"https:\/\/www.av-comparatives.org\/\">AV-Comparatives<\/a>, Windows Defender n&rsquo;obtient pas syst\u00e9matiquement les meilleures notes en d\u00e9tection ou en performance.<\/li>\n\n\n\n<li><strong>Mauvaise adaptabilit\u00e9 aux usages professionnels<\/strong> : les entreprises ont besoin de solutions centralis\u00e9es, configurables, avec un support technique r\u00e9actif, ce que ne propose pas Defender.<\/li>\n<\/ul>\n\n\n\n<p><a href=\"https:\/\/www.cybermalveillance.gouv.fr\/tous-nos-contenus\/actualites\/alerte-cyber-failles-de-securite-critiques-dans-les-produits-microsoft-202501\">https:\/\/www.cybermalveillance.gouv.fr\/tous-nos-contenus\/actualites\/alerte-cyber-failles-de-securite-critiques-dans-les-produits-microsoft-202501<\/a><\/p>\n\n\n\n<p>En bref : bien pour les utilisateurs tr\u00e8s peu expos\u00e9s, insuffisant pour les autres.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/avast-antivirus.involve.me\/diagnostic-securite-recommandation-avast\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"517\" src=\"https:\/\/www.antivirusedition.com\/blog\/wp-content\/uploads\/2026\/02\/Lead-Magnet-Particuliers-1-1024x517.jpg\" alt=\"\" class=\"wp-image-2229\" srcset=\"https:\/\/www.antivirusedition.com\/blog\/wp-content\/uploads\/2026\/02\/Lead-Magnet-Particuliers-1-1024x517.jpg 1024w, https:\/\/www.antivirusedition.com\/blog\/wp-content\/uploads\/2026\/02\/Lead-Magnet-Particuliers-1-300x152.jpg 300w, https:\/\/www.antivirusedition.com\/blog\/wp-content\/uploads\/2026\/02\/Lead-Magnet-Particuliers-1-768x388.jpg 768w, https:\/\/www.antivirusedition.com\/blog\/wp-content\/uploads\/2026\/02\/Lead-Magnet-Particuliers-1.jpg 1346w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Pourquoi Avast se d\u00e9marque nettement de Windows Defender<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Une protection proactive bas\u00e9e sur l&rsquo;intelligence artificielle<\/h3>\n\n\n\n<p>Avast ne se contente pas de bloquer les menaces connues. Sa technologie de d\u00e9tection repose sur :<\/p>\n\n\n\n<ul>\n<li><strong>Des algorithmes comportementaux<\/strong> : qui identifient les anomalies en temps r\u00e9el, m\u00eame sans signature.<\/li>\n\n\n\n<li><strong>Une base de donn\u00e9es cloud mondialement partag\u00e9e<\/strong> (Threat Intelligence Network) : plus de 435 millions d&rsquo;utilisateurs alimentent une d\u00e9tection collaborative.<\/li>\n\n\n\n<li><strong>Des r\u00e9actions instantan\u00e9es<\/strong> aux menaces z\u00e9ro-day et ransomware.<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote\">\n<p>R\u00e9sultat : Avast bloque plus rapidement les malwares inconnus, m\u00eame ceux qui \u00e9chappent aux bases virales traditionnelles.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">Des fonctionnalit\u00e9s de cybers\u00e9curit\u00e9 beaucoup plus avanc\u00e9es<\/h3>\n\n\n\n<p>Contrairement \u00e0 Windows Defender, <strong><a href=\"https:\/\/www.antivirusedition.com\/avast_premium.php\">Avast Premium Security<\/a><\/strong> et <strong><a href=\"https:\/\/www.antivirusedition.com\/avast_ultimate.php\">Avast Ultimate<\/a><\/strong> int\u00e8grent des outils compl\u00e8ts pour une s\u00e9curit\u00e9 globale :<\/p>\n\n\n\n<ul>\n<li><strong>VPN s\u00e9curis\u00e9<\/strong> : pour chiffrer les connexions et prot\u00e9ger votre vie priv\u00e9e en ligne.<\/li>\n\n\n\n<li><strong>Protection des cam\u00e9ras et micros<\/strong> : pour emp\u00eacher l&rsquo;espionnage \u00e0 distance.<\/li>\n\n\n\n<li><strong>Anti-ransomware sp\u00e9cifique<\/strong> : qui bloque les modifications non autoris\u00e9es sur vos fichiers sensibles.<\/li>\n\n\n\n<li><strong>Sandbox<\/strong> : un environnement isol\u00e9 pour tester les fichiers suspects sans risquer votre syst\u00e8me.<\/li>\n\n\n\n<li><strong>Pare-feu personnalisable<\/strong> : bien plus flexible que celui de Windows.<\/li>\n\n\n\n<li><strong>Mises \u00e0 jour tr\u00e8s fr\u00e9quentes<\/strong> : chaque jour, les bases virales et les modules sont r\u00e9actualis\u00e9s.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Une interface plus compl\u00e8te et plus claire<\/h3>\n\n\n\n<p>Avast a con\u00e7u une interface \u00e0 la fois intuitive pour les d\u00e9butants et puissante pour les experts. Parmi ses atouts :<\/p>\n\n\n\n<ul>\n<li><strong>Tableau de bord visuel<\/strong> personnalisable.<\/li>\n\n\n\n<li><strong>Modules activables\/d\u00e9sactivables<\/strong> selon vos besoins.<\/li>\n\n\n\n<li><strong>Gestion centralis\u00e9e via <a href=\"https:\/\/businesshub.avast.com\/\">Avast Business Hub<\/a><\/strong> pour les entreprises.<\/li>\n\n\n\n<li><strong>Compatibilit\u00e9 multiplateforme<\/strong> : Windows, Mac, Android, iOS.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Comparatif Avast vs Windows Defender \u2013 Tableau r\u00e9capitulatif<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><th><strong>Crit\u00e8res de s\u00e9curit\u00e9<\/strong><\/th><th><strong>Avast (gratuit &amp; payant)<\/strong><\/th><th><strong>Windows Defender<\/strong><\/th><\/tr><tr><td>D\u00e9tection malware<\/td><td>\u2705 Tr\u00e8s \u00e9lev\u00e9e<\/td><td>\u26a0 Moyenne<\/td><\/tr><tr><td>Protection en temps r\u00e9el<\/td><td>\u2705 IA avanc\u00e9e<\/td><td>\u2705 De base<\/td><\/tr><tr><td>Anti-ransomware<\/td><td>\u2705 D\u00e9di\u00e9 et personnalisable<\/td><td>\u26a0 Basique<\/td><\/tr><tr><td>VPN int\u00e9gr\u00e9<\/td><td>\u2705 Oui (version payante)<\/td><td>\u274c Non<\/td><\/tr><tr><td>Interface utilisateur<\/td><td>\u2705 Moderne et claire<\/td><td>\u26a0 Basique<\/td><\/tr><tr><td>Pare-feu intelligent<\/td><td>\u2705 Oui (version Premium)<\/td><td>\u26a0 Minimal<\/td><\/tr><tr><td>Support technique<\/td><td>\u2705 Oui (24\/7, multilingue)<\/td><td>\u26a0 Limit\u00e9 aux FAQ<\/td><\/tr><tr><td>Console de gestion (pro)<\/td><td>\u2705 Oui via <a href=\"https:\/\/businesshub.avast.com\/\">Avast Business Hub<\/a><\/td><td>\u274c Non<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/avast-antivirus.involve.me\/diagnostic-securite-recommandation-avast\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"517\" src=\"https:\/\/www.antivirusedition.com\/blog\/wp-content\/uploads\/2026\/02\/Lead-Magnet-Particuliers-1-1024x517.jpg\" alt=\"\" class=\"wp-image-2229\" srcset=\"https:\/\/www.antivirusedition.com\/blog\/wp-content\/uploads\/2026\/02\/Lead-Magnet-Particuliers-1-1024x517.jpg 1024w, https:\/\/www.antivirusedition.com\/blog\/wp-content\/uploads\/2026\/02\/Lead-Magnet-Particuliers-1-300x152.jpg 300w, https:\/\/www.antivirusedition.com\/blog\/wp-content\/uploads\/2026\/02\/Lead-Magnet-Particuliers-1-768x388.jpg 768w, https:\/\/www.antivirusedition.com\/blog\/wp-content\/uploads\/2026\/02\/Lead-Magnet-Particuliers-1.jpg 1346w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c0 qui s\u2019adresse Avast ? Et pourquoi c\u2019est le bon choix en 2025<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Particuliers exigeants<\/h3>\n\n\n\n<p>Avast s\u2019adresse \u00e0 ceux qui veulent plus qu&rsquo;une simple barri\u00e8re anti-virus :<\/p>\n\n\n\n<ul>\n<li>Protection vie priv\u00e9e (VPN, anti-traqueurs)<\/li>\n\n\n\n<li>D\u00e9tection proactive<\/li>\n\n\n\n<li>S\u00e9curit\u00e9 sur tous les appareils, y compris mobiles<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Familles connect\u00e9es<\/h3>\n\n\n\n<p>Avec des enfants ou plusieurs ordinateurs \u00e0 la maison, Avast facilite :<\/p>\n\n\n\n<ul>\n<li><strong>Le contr\u00f4le parental<\/strong><\/li>\n\n\n\n<li><strong>La gestion multi-appareils<\/strong><\/li>\n\n\n\n<li><strong>La supervision de l&rsquo;activit\u00e9 en ligne<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">TPE \/ PME<\/h3>\n\n\n\n<p>Les entreprises ont besoin de plus de rigueur. <a href=\"https:\/\/www.antivirusedition.com\/avast_essential_business_security.php\">Avast Business<\/a> propose :<\/p>\n\n\n\n<ul>\n<li><strong>Console centralis\u00e9e<\/strong><\/li>\n\n\n\n<li><strong>Licences adapt\u00e9es au nombre d\u2019employ\u00e9s<\/strong><\/li>\n\n\n\n<li><strong>Support technique professionnel<\/strong><\/li>\n\n\n\n<li><strong>Audit et rapports de s\u00e9curit\u00e9<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Utilisateurs mobiles<\/h3>\n\n\n\n<p>Les smartphones sont les nouvelles cibles des cybercriminels. <a href=\"https:\/\/www.antivirusedition.com\/avast_mobile_security_pro.php\">Avast Mobile Security<\/a> offre :<\/p>\n\n\n\n<ul>\n<li><strong>Antivirus l\u00e9ger et puissant<\/strong><\/li>\n\n\n\n<li><strong>Protection anti-phishing et anti-spam<\/strong><\/li>\n\n\n\n<li><strong>Localisation de l\u2019appareil en cas de vol<\/strong><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Avast, un choix responsable pour une s\u00e9curit\u00e9 compl\u00e8te<\/h2>\n\n\n\n<p>Windows Defender est une bonne premi\u00e8re ligne de d\u00e9fense. Mais il ne suffit pas pour prot\u00e9ger efficacement contre les menaces modernes.<\/p>\n\n\n\n<p>Avec ses technologies de d\u00e9tection de pointe, ses outils compl\u00e9mentaires (VPN, sandbox, pare-feu, etc.) et sa port\u00e9e mondiale, <strong>Avast se positionne comme un v\u00e9ritable bouclier num\u00e9rique<\/strong>.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote\">\n<p>En 2025, il est clair que <strong>Microsoft ne gagne pas le match de la s\u00e9curit\u00e9<\/strong>. Pour une vraie tranquillite d\u2019esprit, <strong>Avast est l\u2019alli\u00e9 de confiance<\/strong>.<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Essayez Avast maintenant<\/h3>\n\n\n\n<p>Que vous soyez un particulier, une famille ou un professionnel, il existe une solution Avast adapt\u00e9e \u00e0 vos besoins.<\/p>\n\n\n\n<p><a>\ud83d\udd17 <\/a><a href=\"https:\/\/www.antivirusedition.com\/avast_premium.php\">T\u00e9l\u00e9charger Avast<\/a><\/p>\n\n\n\n<p><a>\ud83d\udd17 <\/a><a href=\"https:\/\/www.antivirusedition.com\/avast_essential_business_security.php\">D\u00e9couvrir Avast Business Hub<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p class=\"qua-blog-post-description\">En mati\u00e8re de cybers\u00e9curit\u00e9, deux noms reviennent souvent dans les conversations : Avast Antivirus et Windows Defender. Le premier est un acteur historique de la protection informatique, avec plus de 30 ans d&rsquo;expertise. Le second est l&rsquo;antivirus gratuit de Microsoft, int\u00e9gr\u00e9 nativement dans Windows. Si leur popularit\u00e9 est ind\u00e9niable, leurs performances et leurs fonctionnalit\u00e9s ne [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"sfsi_plus_gutenberg_text_before_share":"","sfsi_plus_gutenberg_show_text_before_share":"","sfsi_plus_gutenberg_icon_type":"","sfsi_plus_gutenberg_icon_alignemt":"","sfsi_plus_gutenburg_max_per_row":""},"categories":[1],"tags":[],"aioseo_notices":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Avast ou Windows Defender ? Le match s\u00e9curit\u00e9 que Microsoft ne gagne pas - Blog Avast Antivirus<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.antivirusedition.com\/blog\/avast-ou-windows-defender-le-match-securite-que-microsoft-ne-gagne-pas-1598.html\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Avast ou Windows Defender ? Le match s\u00e9curit\u00e9 que Microsoft ne gagne pas - Blog Avast Antivirus\" \/>\n<meta property=\"og:description\" content=\"En mati\u00e8re de cybers\u00e9curit\u00e9, deux noms reviennent souvent dans les conversations : Avast Antivirus et Windows Defender. Le premier est un acteur historique de la protection informatique, avec plus de 30 ans d&rsquo;expertise. Le second est l&rsquo;antivirus gratuit de Microsoft, int\u00e9gr\u00e9 nativement dans Windows. 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