{"id":2253859,"date":"2025-11-23T07:18:52","date_gmt":"2025-11-23T06:18:52","guid":{"rendered":"https:\/\/jng-web.com\/labo\/?p=2253859"},"modified":"2025-10-05T20:20:55","modified_gmt":"2025-10-05T18:20:55","slug":"comment-demarrer-son-pc-a-partir-dune-cle-usb-guide-complet","status":"publish","type":"post","link":"https:\/\/jng-web.com\/labo\/comment-demarrer-son-pc-a-partir-dune-cle-usb-guide-complet\/","title":{"rendered":"Comment d\u00e9marrer son PC \u00e0 partir d\u2019une cl\u00e9 USB (guide complet)"},"content":{"rendered":"<div class=\"advads-avant-le-contenu\" id=\"advads-1541119461\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-4944504088214075\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-4944504088214075\" \ndata-ad-slot=\"4514395581\" \ndata-ad-format=\"auto\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div><div class=\"advads-test\" style=\"margin-left: auto;margin-right: auto;text-align: center;\" id=\"advads-172187420\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-4944504088214075\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-4944504088214075\" \ndata-ad-slot=\"4514395581\" \ndata-ad-format=\"auto\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div><p data-start=\"140\" data-end=\"537\">D\u00e9marrer son ordinateur \u00e0 partir d\u2019une <strong data-start=\"179\" data-end=\"199\">cl\u00e9 USB bootable<\/strong> est une op\u00e9ration indispensable pour <strong data-start=\"237\" data-end=\"284\">installer un nouveau syst\u00e8me d\u2019exploitation<\/strong>, <strong data-start=\"286\" data-end=\"305\">r\u00e9parer Windows<\/strong>, <strong data-start=\"307\" data-end=\"323\">tester Linux<\/strong>, ou encore <strong data-start=\"335\" data-end=\"362\">effectuer un diagnostic<\/strong>.<br data-start=\"363\" data-end=\"366\" \/>Mais beaucoup d\u2019utilisateurs se demandent : <em data-start=\"410\" data-end=\"468\">comment faire concr\u00e8tement pour booter sur une cl\u00e9 USB ?<\/em><br data-start=\"468\" data-end=\"471\" \/>Voici un guide simple et complet pour y parvenir, \u00e9tape par \u00e9tape.<\/p>\n<h2 data-start=\"544\" data-end=\"581\"> 1. Pr\u00e9parer la cl\u00e9 USB bootable<\/h2>\n<p data-start=\"583\" data-end=\"678\">Avant de modifier quoi que ce soit sur votre ordinateur, il faut <strong data-start=\"648\" data-end=\"677\">cr\u00e9er la cl\u00e9 USB bootable<\/strong>.<\/p>\n<h3 data-start=\"680\" data-end=\"706\">\u27a4 Ce qu\u2019il vous faut :<\/h3>\n<ul data-start=\"707\" data-end=\"965\">\n<li data-start=\"707\" data-end=\"777\">\n<p data-start=\"709\" data-end=\"777\">Une <strong data-start=\"713\" data-end=\"724\">cl\u00e9 USB<\/strong> (8 Go minimum recommand\u00e9s, 16 Go pour Windows 11).<\/p>\n<\/li>\n<li data-start=\"778\" data-end=\"867\">\n<p data-start=\"780\" data-end=\"867\">Un <strong data-start=\"783\" data-end=\"798\">fichier ISO<\/strong> du syst\u00e8me d\u2019exploitation ou de l\u2019outil que vous voulez installer.<\/p>\n<\/li>\n<li data-start=\"868\" data-end=\"965\">\n<p data-start=\"870\" data-end=\"965\">Un <strong data-start=\"873\" data-end=\"913\">logiciel de cr\u00e9ation de cl\u00e9 bootable<\/strong> (comme <strong data-start=\"921\" data-end=\"930\">Rufus<\/strong>, <strong data-start=\"932\" data-end=\"949\">Balena Etcher<\/strong> ou <strong data-start=\"953\" data-end=\"963\">Ventoy<\/strong>).<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"967\" data-end=\"981\">\u27a4 \u00c9tapes :<\/h3>\n<ol data-start=\"982\" data-end=\"1482\">\n<li data-start=\"982\" data-end=\"1082\">\n<p data-start=\"985\" data-end=\"1082\">T\u00e9l\u00e9chargez le fichier ISO (par exemple sur le site officiel de Microsoft, Ubuntu, Debian, etc.).<\/p>\n<\/li>\n<li data-start=\"1083\" data-end=\"1116\">\n<p data-start=\"1086\" data-end=\"1116\">Branchez la cl\u00e9 USB sur le PC.<\/p>\n<\/li>\n<li data-start=\"1117\" data-end=\"1168\">\n<p data-start=\"1120\" data-end=\"1168\">Lancez <strong data-start=\"1127\" data-end=\"1136\">Rufus<\/strong> (gratuit et sans installation).<\/p>\n<\/li>\n<li data-start=\"1169\" data-end=\"1391\">\n<p data-start=\"1172\" data-end=\"1186\">S\u00e9lectionnez :<\/p>\n<ul data-start=\"1190\" data-end=\"1391\">\n<li data-start=\"1190\" data-end=\"1227\">\n<p data-start=\"1192\" data-end=\"1227\"><strong data-start=\"1192\" data-end=\"1208\">P\u00e9riph\u00e9rique<\/strong> : votre cl\u00e9 USB.<\/p>\n<\/li>\n<li data-start=\"1231\" data-end=\"1272\">\n<p data-start=\"1233\" data-end=\"1272\"><strong data-start=\"1233\" data-end=\"1249\">Image disque<\/strong> : votre fichier ISO.<\/p>\n<\/li>\n<li data-start=\"1276\" data-end=\"1391\">\n<p data-start=\"1278\" data-end=\"1303\"><strong data-start=\"1278\" data-end=\"1301\">Sch\u00e9ma de partition<\/strong> :<\/p>\n<ul data-start=\"1309\" data-end=\"1391\">\n<li data-start=\"1309\" data-end=\"1346\">\n<p data-start=\"1311\" data-end=\"1346\"><em data-start=\"1311\" data-end=\"1316\">MBR<\/em> pour les anciens BIOS\/Legacy,<\/p>\n<\/li>\n<li data-start=\"1352\" data-end=\"1391\">\n<p data-start=\"1354\" data-end=\"1391\"><em data-start=\"1354\" data-end=\"1359\">GPT<\/em> pour les syst\u00e8mes UEFI r\u00e9cents.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"1392\" data-end=\"1482\">\n<p data-start=\"1395\" data-end=\"1482\">Cliquez sur <strong data-start=\"1407\" data-end=\"1419\">D\u00e9marrer<\/strong>.<br data-start=\"1420\" data-end=\"1423\" \/>\u26a0\ufe0f Tous les fichiers pr\u00e9sents sur la cl\u00e9 seront effac\u00e9s.<\/p>\n<\/li>\n<\/ol>\n<p data-start=\"1484\" data-end=\"1545\">Une fois la cl\u00e9 pr\u00eate, vous pouvez passer \u00e0 l\u2019\u00e9tape suivante.<\/p>\n<h2 data-start=\"1552\" data-end=\"1601\">\u2699\ufe0f 2. Acc\u00e9der au menu de d\u00e9marrage (Boot Menu)<\/h2>\n<p data-start=\"1603\" data-end=\"1713\">Pour dire \u00e0 votre PC de d\u00e9marrer sur la cl\u00e9 USB, il faut acc\u00e9der au <strong data-start=\"1671\" data-end=\"1692\">menu de d\u00e9marrage<\/strong> ou au <strong data-start=\"1699\" data-end=\"1712\">BIOS\/UEFI<\/strong>.<\/p>\n<h3 data-start=\"1715\" data-end=\"1758\">\u27a4 M\u00e9thode rapide : le menu de d\u00e9marrage<\/h3>\n<ol data-start=\"1760\" data-end=\"1920\">\n<li data-start=\"1760\" data-end=\"1805\">\n<p data-start=\"1763\" data-end=\"1805\">Ins\u00e9rez la cl\u00e9 USB dans un port USB du PC.<\/p>\n<\/li>\n<li data-start=\"1806\" data-end=\"1833\">\n<p data-start=\"1809\" data-end=\"1833\">Red\u00e9marrez l\u2019ordinateur.<\/p>\n<\/li>\n<li data-start=\"1834\" data-end=\"1920\">\n<p data-start=\"1837\" data-end=\"1920\">Appuyez plusieurs fois sur la touche correspondant au <em data-start=\"1891\" data-end=\"1902\">Boot Menu<\/em> d\u00e8s le d\u00e9marrage.<\/p>\n<\/li>\n<\/ol>\n<div class=\"_tableContainer_1rjym_1\">\n<div class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"1922\" data-end=\"2175\">\n<thead data-start=\"1922\" data-end=\"1976\">\n<tr data-start=\"1922\" data-end=\"1976\">\n<th data-start=\"1922\" data-end=\"1937\" data-col-size=\"sm\">Marque du PC<\/th>\n<th data-start=\"1937\" data-end=\"1976\" data-col-size=\"sm\">Touche d\u2019acc\u00e8s au menu de d\u00e9marrage<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"2032\" data-end=\"2175\">\n<tr data-start=\"2032\" data-end=\"2049\">\n<td data-start=\"2032\" data-end=\"2039\" data-col-size=\"sm\">ASUS<\/td>\n<td data-start=\"2039\" data-end=\"2049\" data-col-size=\"sm\"><strong data-start=\"2041\" data-end=\"2047\">F8<\/strong><\/td>\n<\/tr>\n<tr data-start=\"2050\" data-end=\"2068\">\n<td data-start=\"2050\" data-end=\"2057\" data-col-size=\"sm\">Acer<\/td>\n<td data-start=\"2057\" data-end=\"2068\" data-col-size=\"sm\"><strong data-start=\"2059\" data-end=\"2066\">F12<\/strong><\/td>\n<\/tr>\n<tr data-start=\"2069\" data-end=\"2087\">\n<td data-start=\"2069\" data-end=\"2076\" data-col-size=\"sm\">Dell<\/td>\n<td data-start=\"2076\" data-end=\"2087\" data-col-size=\"sm\"><strong data-start=\"2078\" data-end=\"2085\">F12<\/strong><\/td>\n<\/tr>\n<tr data-start=\"2088\" data-end=\"2114\">\n<td data-start=\"2088\" data-end=\"2093\" data-col-size=\"sm\">HP<\/td>\n<td data-start=\"2093\" data-end=\"2114\" data-col-size=\"sm\"><strong data-start=\"2095\" data-end=\"2102\">Esc<\/strong> ou <strong data-start=\"2106\" data-end=\"2112\">F9<\/strong><\/td>\n<\/tr>\n<tr data-start=\"2115\" data-end=\"2135\">\n<td data-start=\"2115\" data-end=\"2124\" data-col-size=\"sm\">Lenovo<\/td>\n<td data-start=\"2124\" data-end=\"2135\" data-col-size=\"sm\"><strong data-start=\"2126\" data-end=\"2133\">F12<\/strong><\/td>\n<\/tr>\n<tr data-start=\"2136\" data-end=\"2153\">\n<td data-start=\"2136\" data-end=\"2142\" data-col-size=\"sm\">MSI<\/td>\n<td data-start=\"2142\" data-end=\"2153\" data-col-size=\"sm\"><strong data-start=\"2144\" data-end=\"2151\">F11<\/strong><\/td>\n<\/tr>\n<tr data-start=\"2154\" data-end=\"2175\">\n<td data-start=\"2154\" data-end=\"2164\" data-col-size=\"sm\">Toshiba<\/td>\n<td data-start=\"2164\" data-end=\"2175\" data-col-size=\"sm\"><strong data-start=\"2166\" data-end=\"2173\">F12<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<ol start=\"4\" data-start=\"2177\" data-end=\"2245\">\n<li data-start=\"2177\" data-end=\"2245\">\n<p data-start=\"2180\" data-end=\"2245\">S\u00e9lectionnez la cl\u00e9 USB dans la liste et validez avec <strong data-start=\"2234\" data-end=\"2244\">Entr\u00e9e<\/strong>.<\/p>\n<\/li>\n<\/ol>\n<blockquote data-start=\"2247\" data-end=\"2346\">\n<p data-start=\"2249\" data-end=\"2346\"> Conseil : Si la cl\u00e9 n\u2019appara\u00eet pas, essayez un autre port USB (de pr\u00e9f\u00e9rence un port USB 2.0).<\/p>\n<\/blockquote>\n<h2 data-start=\"2353\" data-end=\"2425\"> 3. Modifier l\u2019ordre de d\u00e9marrage dans le BIOS\/UEFI (si n\u00e9cessaire)<\/h2>\n<p data-start=\"2427\" data-end=\"2544\">Si le menu de d\u00e9marrage ne fonctionne pas, vous pouvez changer <strong data-start=\"2490\" data-end=\"2525\">l\u2019ordre de d\u00e9marrage par d\u00e9faut<\/strong> dans le BIOS\/UEFI.<\/p>\n<h3 data-start=\"2546\" data-end=\"2558\">\u00c9tapes :<\/h3>\n<ol data-start=\"2559\" data-end=\"2919\">\n<li data-start=\"2559\" data-end=\"2592\">\n<p data-start=\"2562\" data-end=\"2592\">Red\u00e9marrez votre ordinateur.<\/p>\n<\/li>\n<li data-start=\"2593\" data-end=\"2728\">\n<p data-start=\"2596\" data-end=\"2664\">Appuyez plusieurs fois sur la touche pour acc\u00e9der au <strong data-start=\"2649\" data-end=\"2662\">BIOS\/UEFI<\/strong> :<\/p>\n<ul data-start=\"2668\" data-end=\"2728\">\n<li data-start=\"2668\" data-end=\"2728\">\n<p data-start=\"2670\" data-end=\"2728\"><strong data-start=\"2670\" data-end=\"2677\">Del<\/strong>, <strong data-start=\"2679\" data-end=\"2685\">F2<\/strong>, <strong data-start=\"2687\" data-end=\"2694\">F10<\/strong> ou <strong data-start=\"2698\" data-end=\"2705\">Esc<\/strong> selon le constructeur.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"2729\" data-end=\"2792\">\n<p data-start=\"2732\" data-end=\"2792\">Allez dans l\u2019onglet <strong data-start=\"2752\" data-end=\"2760\">Boot<\/strong>, <strong data-start=\"2762\" data-end=\"2773\">Startup<\/strong> ou <strong data-start=\"2777\" data-end=\"2791\">Boot Order<\/strong>.<\/p>\n<\/li>\n<li data-start=\"2793\" data-end=\"2866\">\n<p data-start=\"2796\" data-end=\"2866\">Placez la <strong data-start=\"2806\" data-end=\"2817\">cl\u00e9 USB<\/strong> en premi\u00e8re position dans la liste de d\u00e9marrage.<\/p>\n<\/li>\n<li data-start=\"2867\" data-end=\"2919\">\n<p data-start=\"2870\" data-end=\"2919\">Enregistrez les changements (<strong data-start=\"2899\" data-end=\"2906\">F10<\/strong>) et quittez.<\/p>\n<\/li>\n<\/ol>\n<p data-start=\"2921\" data-end=\"2978\">Votre PC red\u00e9marrera alors directement depuis la cl\u00e9 USB.<\/p>\n<h2 data-start=\"2985\" data-end=\"3026\"> 4. D\u00e9marrer et installer ou r\u00e9parer<\/h2>\n<p data-start=\"3028\" data-end=\"3078\">Une fois le d\u00e9marrage effectu\u00e9 depuis la cl\u00e9 USB :<\/p>\n<ul data-start=\"3079\" data-end=\"3356\">\n<li data-start=\"3079\" data-end=\"3178\">\n<p data-start=\"3081\" data-end=\"3178\">Si c\u2019est une <strong data-start=\"3094\" data-end=\"3124\">cl\u00e9 d\u2019installation Windows<\/strong>, vous verrez l\u2019assistant d\u2019installation de Windows.<\/p>\n<\/li>\n<li data-start=\"3179\" data-end=\"3279\">\n<p data-start=\"3181\" data-end=\"3279\">Si c\u2019est une <strong data-start=\"3194\" data-end=\"3216\">distribution Linux<\/strong>, un menu vous proposera d\u2019essayer ou d\u2019installer le syst\u00e8me.<\/p>\n<\/li>\n<li data-start=\"3280\" data-end=\"3356\">\n<p data-start=\"3282\" data-end=\"3356\">Si c\u2019est un <strong data-start=\"3294\" data-end=\"3317\">outil de r\u00e9paration<\/strong>, il lancera directement son interface.<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"3358\" data-end=\"3413\">Suivez simplement les instructions affich\u00e9es \u00e0 l\u2019\u00e9cran.<\/p>\n<h2 data-start=\"3420\" data-end=\"3469\"> 5. D\u00e9pannage : si la cl\u00e9 USB ne d\u00e9marre pas<\/h2>\n<h3 data-start=\"3471\" data-end=\"3503\"> Le PC ignore la cl\u00e9 USB ?<\/h3>\n<ul data-start=\"3504\" data-end=\"3775\">\n<li data-start=\"3504\" data-end=\"3586\">\n<p data-start=\"3506\" data-end=\"3586\">V\u00e9rifiez qu\u2019elle est bien <strong data-start=\"3532\" data-end=\"3544\">bootable<\/strong> (refaites-la avec Rufus si n\u00e9cessaire).<\/p>\n<\/li>\n<li data-start=\"3587\" data-end=\"3668\">\n<p data-start=\"3589\" data-end=\"3668\">Essayez un autre port USB (certains PC ne bootent pas sur les ports USB 3.0).<\/p>\n<\/li>\n<li data-start=\"3669\" data-end=\"3775\">\n<p data-start=\"3671\" data-end=\"3775\">Si vous utilisez un PC r\u00e9cent, assurez-vous que le mode <strong data-start=\"3727\" data-end=\"3742\">Secure Boot<\/strong> est d\u00e9sactiv\u00e9 dans le BIOS\/UEFI.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"3777\" data-end=\"3815\"> Le BIOS ne d\u00e9tecte pas la cl\u00e9 ?<\/h3>\n<ul data-start=\"3816\" data-end=\"3948\">\n<li data-start=\"3816\" data-end=\"3873\">\n<p data-start=\"3818\" data-end=\"3873\">Rebranchez-la apr\u00e8s avoir allum\u00e9 le PC et red\u00e9marrez.<\/p>\n<\/li>\n<li data-start=\"3874\" data-end=\"3948\">\n<p data-start=\"3876\" data-end=\"3948\">Testez-la sur un autre ordinateur pour v\u00e9rifier qu\u2019elle fonctionne bien.<\/p>\n<\/li>\n<\/ul>\n<h2 data-start=\"3955\" data-end=\"3970\"> En r\u00e9sum\u00e9<\/h2>\n<div class=\"_tableContainer_1rjym_1\">\n<div class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"3972\" data-end=\"4347\">\n<thead data-start=\"3972\" data-end=\"3990\">\n<tr data-start=\"3972\" data-end=\"3990\">\n<th data-start=\"3972\" data-end=\"3980\" data-col-size=\"sm\">\u00c9tape<\/th>\n<th data-start=\"3980\" data-end=\"3990\" data-col-size=\"md\">Action<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"4011\" data-end=\"4347\">\n<tr data-start=\"4011\" data-end=\"4072\">\n<td data-start=\"4011\" data-end=\"4017\" data-col-size=\"sm\">1\ufe0f\u20e3<\/td>\n<td data-start=\"4017\" data-end=\"4072\" data-col-size=\"md\">Cr\u00e9er une cl\u00e9 USB bootable avec Rufus ou \u00e9quivalent<\/td>\n<\/tr>\n<tr data-start=\"4073\" data-end=\"4144\">\n<td data-start=\"4073\" data-end=\"4079\" data-col-size=\"sm\">2\ufe0f\u20e3<\/td>\n<td data-start=\"4079\" data-end=\"4144\" data-col-size=\"md\">Ins\u00e9rer la cl\u00e9 et acc\u00e9der au Boot Menu (touche F12, F8, etc.)<\/td>\n<\/tr>\n<tr data-start=\"4145\" data-end=\"4212\">\n<td data-start=\"4145\" data-end=\"4151\" data-col-size=\"sm\">3\ufe0f\u20e3<\/td>\n<td data-start=\"4151\" data-end=\"4212\" data-col-size=\"md\">Si besoin, changer l\u2019ordre de d\u00e9marrage dans le BIOS\/UEFI<\/td>\n<\/tr>\n<tr data-start=\"4213\" data-end=\"4284\">\n<td data-start=\"4213\" data-end=\"4219\" data-col-size=\"sm\">4\ufe0f\u20e3<\/td>\n<td data-start=\"4219\" data-end=\"4284\" data-col-size=\"md\">D\u00e9marrer sur la cl\u00e9 et suivre les instructions d\u2019installation<\/td>\n<\/tr>\n<tr data-start=\"4285\" data-end=\"4347\">\n<td data-start=\"4285\" data-end=\"4291\" data-col-size=\"sm\">5\ufe0f\u20e3<\/td>\n<td data-start=\"4291\" data-end=\"4347\" data-col-size=\"md\">V\u00e9rifier la cl\u00e9 ou les param\u00e8tres en cas de probl\u00e8me<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<h2 data-start=\"4354\" data-end=\"4372\">\u26a1 En conclusion<\/h2>\n<p data-start=\"4374\" data-end=\"4664\">Savoir d\u00e9marrer son PC \u00e0 partir d\u2019une cl\u00e9 USB est une <strong data-start=\"4428\" data-end=\"4454\">comp\u00e9tence essentielle<\/strong>, que ce soit pour installer un nouvel OS, r\u00e9parer Windows ou d\u00e9panner un ordinateur.<br data-start=\"4539\" data-end=\"4542\" \/>Avec un peu de m\u00e9thode et les bonnes touches au d\u00e9marrage, tout le monde peut le faire \u2014 pas besoin d\u2019\u00eatre informaticien !<\/p>\n","protected":false},"excerpt":{"rendered":"<p>D\u00e9marrer son ordinateur \u00e0 partir d\u2019une cl\u00e9 USB bootable est une op\u00e9ration indispensable pour installer un nouveau syst\u00e8me d\u2019exploitation, r\u00e9parer Windows, tester Linux, ou encore &hellip; <\/p>\n","protected":false},"author":2,"featured_media":2253879,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[27],"tags":[127],"class_list":["post-2253859","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-logiciels","tag-windows"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.9.1 - 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