{"id":7012,"date":"2020-07-26T18:02:06","date_gmt":"2020-07-26T17:02:06","guid":{"rendered":"https:\/\/www.varcap-informatique.net\/tutoriels\/?p=7012"},"modified":"2020-07-26T18:02:09","modified_gmt":"2020-07-26T17:02:09","slug":"comment-convertir-un-disque-mbr-en-gpt-sous-windows-7-8-ou-10","status":"publish","type":"post","link":"https:\/\/www.varcap-informatique.net\/tutoriels\/comment-convertir-un-disque-mbr-en-gpt-sous-windows-7-8-ou-10\/","title":{"rendered":"Comment convertir un disque MBR en GPT sous Windows 7, 8 ou 10 ?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Lorsque vous souhaitez utiliser un disque dur ou un disque SSD d&rsquo;une taille sup\u00e9rieur \u00e0 2 To (Tera octet), vous devez utiliser une table de partition GPT (GUID Partition Table). <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Il m&rsquo;est arriv\u00e9 lors de mes d\u00e9pannages, de trouver des disques durs de 3, 4 To utilis\u00e9s en table de partition MBR. L&rsquo;utilisateur ne voyait que 2 To&#8230;<br \/><br \/>Dans ce tutoriel, je vais vous expliquer comment je fais pour convertir un disque en table de partition MBR en GPT sans perte de donn\u00e9e et gratuitement.<\/p>\n\n\n\n<p><u>Pr\u00e9requis<\/u> :<br \/>&#8211; BIOS en EFI<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Convertir un disque MBR en GPT sous Windows 7, 8 ou 10  ?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Avec <strong>Diskpart<\/strong> qui est inclus \u00e0 Windows, je vais aller voir le nom de mon disque via l&rsquo;invite de commande de Windows ex\u00e9cut\u00e9e en mode Administrateur. Pour savoir comment ouvrir l&rsquo;invite de commande, <a href=\"https:\/\/www.varcap-informatique.net\/tutoriels\/comment-ouvrir-linvite-de-commande-windows\/\">suivez ce tutoriel<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"546\" height=\"219\" data-src=\"https:\/\/www.varcap-informatique.net\/tutoriels\/wp-content\/uploads\/2020\/07\/partiion-mbr-gpt-1.jpg\" alt=\"Afficher la liste des disques dur avec Diskpart\" class=\"wp-image-7015 lazyload\" data-srcset=\"https:\/\/www.varcap-informatique.net\/tutoriels\/wp-content\/uploads\/2020\/07\/partiion-mbr-gpt-1.jpg 546w, https:\/\/www.varcap-informatique.net\/tutoriels\/wp-content\/uploads\/2020\/07\/partiion-mbr-gpt-1-300x120.jpg 300w\" data-sizes=\"(max-width: 546px) 100vw, 546px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 546px; --smush-placeholder-aspect-ratio: 546\/219;\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Dans l&rsquo;invite de commande, je saisis (1):<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><strong>diskpart<\/strong><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">et valide avec la touche Entr\u00e9e de mon clavier.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ensuite j&rsquo;affiche la liste des disques pr\u00e9sent sur le PC, en saisissant (2) :<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><strong>list disk<\/strong><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">et valide avec la touche Entr\u00e9e de mon clavier.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cela ne se voit pas bien sur ma capture d&rsquo;\u00e9cran, mais les \u00e9toiles pr\u00e9sentes indiquent que le disque 1 et le disque 4 ont une table de partition en GPT.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dans ce cas, je souhaite convertir le disque 2 de 3 To en GPT. Ce disque contient environ 500 Go de donn\u00e9es et une partition non allou\u00e9e de 1 To.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Je n&rsquo;ai plus besoin diskpart, je saisis :<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><strong>exit<\/strong><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">et valide avec la touche Entr\u00e9e de mon clavier.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Je vous conseille, par pr\u00e9caution, de faire une sauvegarde de vos donn\u00e9es avant de passer \u00e0 l&rsquo;\u00e9tape suivante.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Maintenant, c&rsquo;est l&rsquo;\u00e9tape de transformation de la table de partition de MBR en GPT. Pour cette \u00e9tape j&rsquo;utilise le logiciel en ligne de commande <strong>gptgen<\/strong>, t\u00e9l\u00e9chargeable sur <a aria-label=\"undefined (s\u2019ouvre dans un nouvel onglet)\" href=\"https:\/\/sourceforge.net\/projects\/gptgen\/\" target=\"_blank\" rel=\"noreferrer noopener\">sourceforge.net<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"638\" height=\"321\" data-src=\"https:\/\/www.varcap-informatique.net\/tutoriels\/wp-content\/uploads\/2020\/07\/partiion-mbr-gpt-2.jpg\" alt=\"conversion table de partition avec gptgen\" class=\"wp-image-7016 lazyload\" data-srcset=\"https:\/\/www.varcap-informatique.net\/tutoriels\/wp-content\/uploads\/2020\/07\/partiion-mbr-gpt-2.jpg 638w, https:\/\/www.varcap-informatique.net\/tutoriels\/wp-content\/uploads\/2020\/07\/partiion-mbr-gpt-2-300x151.jpg 300w\" data-sizes=\"(max-width: 638px) 100vw, 638px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 638px; --smush-placeholder-aspect-ratio: 638\/321;\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Toujours dans l&rsquo;invite de commande \u00e0 l&#8217;emplacement ou j&rsquo;ai d\u00e9compress\u00e9 gptgen, je saisis  : <\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><strong>gptgen.exe -w \\\\.\\physicaldrive2<\/strong> <strong>&lt;-- <span class=\"has-inline-color has-vivid-red-color\">drive2 est mon disque 2<\/span><\/strong><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">et valide avec la touche Entr\u00e9e de mon clavier.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Apr\u00e8s quelques instant, si tout c&rsquo;est bien d\u00e9roul\u00e9, vous verrez s&rsquo;afficher <strong>Success!<\/strong> \u00e0 la fin du d\u00e9roulement de l&rsquo;op\u00e9ration.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dans ce cas, je ne l&rsquo;ai pas fait, mais je vous conseille de refaire un diskpart pour valider que la table de partition de votre disque \u00e0 bien \u00e9t\u00e9 convertie en GPT.<\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"190\" data-src=\"https:\/\/www.varcap-informatique.net\/tutoriels\/wp-content\/uploads\/2015\/07\/banniere-VID-1024x190.png\" alt=\"\" class=\"wp-image-7665 lazyload\" data-srcset=\"https:\/\/www.varcap-informatique.net\/tutoriels\/wp-content\/uploads\/2015\/07\/banniere-VID-1024x190.png 1024w, https:\/\/www.varcap-informatique.net\/tutoriels\/wp-content\/uploads\/2015\/07\/banniere-VID-300x56.png 300w, https:\/\/www.varcap-informatique.net\/tutoriels\/wp-content\/uploads\/2015\/07\/banniere-VID-768x142.png 768w, https:\/\/www.varcap-informatique.net\/tutoriels\/wp-content\/uploads\/2015\/07\/banniere-VID.png 1080w\" data-sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/190;\" \/><\/figure>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Lorsque vous souhaitez utiliser un disque dur ou un disque SSD d&rsquo;une taille sup\u00e9rieur \u00e0 2 To (Tera octet), vous devez utiliser une table de partition GPT (GUID Partition Table). Il m&rsquo;est arriv\u00e9 lors de mes d\u00e9pannages, de trouver des disques durs de 3, 4 To utilis\u00e9s en table de partition MBR. L&rsquo;utilisateur ne voyait [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5584,"comment_status":"open","ping_status":"open","sticky":true,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[140],"tags":[],"class_list":["post-7012","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-windows-10"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Lorsque vous souhaitez utiliser un disque dur ou un disque SSD d&#039;une taille sup\u00e9rieur \u00e0 2 To (Tera octet), vous devez utiliser une table de partition GPT (GUID Partition Table). Il m&#039;est arriv\u00e9 lors de mes d\u00e9pannages, de trouver des disques durs de 3, 4 To utilis\u00e9s en table de partition MBR. 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