{"id":2861,"date":"2025-02-14T17:23:07","date_gmt":"2025-02-14T15:23:07","guid":{"rendered":"https:\/\/asenger.de\/blog\/?p=2861"},"modified":"2025-02-14T17:23:07","modified_gmt":"2025-02-14T15:23:07","slug":"wechsel-von-legacy-bios-zu-uefi-mit-veeam","status":"publish","type":"post","link":"https:\/\/asenger.de\/blog\/wechsel-von-legacy-bios-zu-uefi-mit-veeam\/","title":{"rendered":"Wechsel von Legacy (BIOS) zu UEFI mit Veeam"},"content":{"rendered":"<div class='__iawmlf-post-loop-links' style='display:none;' data-iawmlf-post-links='[{&quot;id&quot;:19,&quot;href&quot;:&quot;https:\\\/\\\/www.veeam.com\\\/de\\\/products\\\/free\\\/microsoft-windows.html&quot;,&quot;archived_href&quot;:&quot;http:\\\/\\\/web-wp.archive.org\\\/web\\\/20260107133802\\\/https:\\\/\\\/www.veeam.com\\\/de\\\/products\\\/free\\\/microsoft-windows.html&quot;,&quot;redirect_href&quot;:&quot;&quot;,&quot;checks&quot;:[{&quot;date&quot;:&quot;2026-02-06 14:49:50&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-02-09 18:20:12&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-02-13 07:37:05&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-02-16 12:43:41&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-02-20 07:45:47&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-02-23 21:00:00&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-01 12:12:39&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-04 13:29:51&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-08 01:14:31&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-11 09:21:49&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-15 06:30:52&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-18 11:20:29&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-21 15:35:21&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-24 18:47:04&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-30 22:14:45&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-04-05 15:39:15&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-04-09 09:43:25&quot;,&quot;http_code&quot;:200}],&quot;broken&quot;:false,&quot;last_checked&quot;:{&quot;date&quot;:&quot;2026-04-09 09:43:25&quot;,&quot;http_code&quot;:200},&quot;process&quot;:&quot;done&quot;},{&quot;id&quot;:20,&quot;href&quot;:&quot;https:\\\/\\\/www.veeam.com\\\/kb3156&quot;,&quot;archived_href&quot;:&quot;http:\\\/\\\/web-wp.archive.org\\\/web\\\/20251203061342\\\/https:\\\/\\\/www.veeam.com\\\/kb3156&quot;,&quot;redirect_href&quot;:&quot;&quot;,&quot;checks&quot;:[{&quot;date&quot;:&quot;2026-02-06 14:49:52&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-02-12 10:33:42&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-02-16 12:42:24&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-02-20 07:45:48&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-02-23 21:00:00&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-01 12:12:42&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-04 13:29:56&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-11 09:21:49&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-15 06:30:54&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-18 11:20:31&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-21 15:35:21&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-25 15:17:07&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-30 22:14:44&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-04-05 15:39:14&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-04-09 09:43:27&quot;,&quot;http_code&quot;:200}],&quot;broken&quot;:false,&quot;last_checked&quot;:{&quot;date&quot;:&quot;2026-04-09 09:43:27&quot;,&quot;http_code&quot;:200},&quot;process&quot;:&quot;done&quot;}]'><\/div>\n<h3>Aufgabe:<\/h3>\n<p>Umzug eines Win 10 Systems, das noch auf MBR bzw. auf BIOS-Legacy Boot l\u00e4uft auf UEFI, damit das Upgrade auf Win 11 machbar ist:<\/p>\n<p>Bitte beachten Sie das ich keine Verantwortung f\u00fcr die L\u00f6schung Ihrer Daten durch falsche und ungeeignete Befehle \u00fcbernehme.<br \/>\n<strong>Wenn Sie die Informationen nutzen, sollten Sie wissen was Sie tun!<\/strong><\/p>\n<p>Datensicherung mit <a href=\"https:\/\/www.veeam.com\/de\/products\/free\/microsoft-windows.html\">Veeam Agent Free (hier)<\/a> der Systemplatte auf eine interne oder externes Medium erstellen. Die Boot-ISO aus Veeam auf einen USB Stick &#8222;brennen&#8220;<br \/>\nDann ggf. Boot-NVMe\/SDD im Rechner tauschen und die Firmware auf UEFI umstellen. Jetzt kommt die Anleitung von Veeam:<\/p>\n<p>Quelle: <a href=\"https:\/\/www.veeam.com\/kb3156\">https:\/\/www.veeam.com\/kb3156<\/a><\/p>\n<div class=\"section-title-component aem-GridColumn aem-GridColumn--default--12\">\n<div class=\"section-title section-title--alignment-left section-title--alignment-center-sm\n            section-title--only-title  \"><\/p>\n<div class=\"section-title__title-block\">\n<h3 class=\"section-title__title\">MBR disk restore to UEFI system displays warning:<br \/>\n<i>OS disk in backup uses MBR disk<\/i><\/h3>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"section-component parbase aem-GridColumn--tablet--12 aem-GridColumn--offset--tablet--0 aem-GridColumn--default--none aem-GridColumn--phone--none aem-GridColumn--phone--12 aem-GridColumn--tablet--none aem-GridColumn aem-GridColumn--default--12 aem-GridColumn--offset--phone--0 aem-GridColumn--offset--default--0\">\n<div class=\" veeam-component__component-spacing-below--md\">\n<div class=\"section    \">\n<div class=\"bg-image-size-contain bg-image-position-center bg-image-hide-mobile bg-image-hide-tablet \">\n<div class=\"  \">\n<div class=\"aem-Grid aem-Grid--12 aem-Grid--tablet--12 aem-Grid--default--12 aem-Grid--phone--12 \">\n<h4 class=\"knowledge-base-details aem-GridColumn--tablet--12 aem-GridColumn--offset--tablet--0 aem-GridColumn--default--none aem-GridColumn--phone--none aem-GridColumn--phone--12 aem-GridColumn--tablet--none aem-GridColumn aem-GridColumn--default--6 aem-GridColumn--offset--phone--0 aem-GridColumn--offset--default--0\">Challenge<\/h4>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"section-component parbase aem-GridColumn--tablet--12 aem-GridColumn--offset--tablet--0 aem-GridColumn--default--none aem-GridColumn--phone--none aem-GridColumn--phone--12 aem-GridColumn--tablet--none aem-GridColumn--default--9 aem-GridColumn aem-GridColumn--offset--phone--0 aem-GridColumn--offset--default--0\">\n<div class=\"section    \">\n<div class=\"bg-image-size-contain bg-image-position-center bg-image-hide-mobile bg-image-hide-tablet \">\n<div class=\"section__container--centered  \">\n<div class=\"aem-Grid aem-Grid--12 aem-Grid--tablet--12 aem-Grid--default--12 aem-Grid--phone--12 \">\n<div class=\"section-component parbase aem-GridColumn aem-GridColumn--default--12\">\n<div class=\" veeam-component__component-spacing-below--sm\">\n<div class=\"section section--round-corners-big   \">\n<div class=\"bg-image-size-contain bg-image-position-left      \">\n<div class=\"  \">\n<div class=\"aem-Grid aem-Grid--12 aem-Grid--tablet--12 aem-Grid--default--12 aem-Grid--phone--12 \">\n<div class=\"veeam-text text aem-GridColumn aem-GridColumn--default--12\">\n<div class=\" veeam-component__component-spacing-below--ss\">\n<div class=\"veeam-text  veeam-text--adaptive-mode\" data-component=\"VeeamTextComponent\" data-initialized=\"true\">\n<p>When attempting to restore a Windows machine using Bare Metal Recovery, the restore displays the warning:<\/p>\n<pre class=\"ckeditor_codeblock\">OS disk in backup uses MBR disk. This may cause boot issues on UEFI systems\r\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"image aem-GridColumn--tablet--12 aem-GridColumn--offset--tablet--0 aem-GridColumn--default--none aem-GridColumn--phone--none aem-GridColumn--phone--12 aem-GridColumn--tablet--none aem-GridColumn aem-GridColumn--default--12 aem-GridColumn--offset--phone--0 aem-GridColumn--offset--default--0\">\n<div class=\"veeam-image veeam-image--align-center      veeam-component__component-spacing-below--md\" data-component=\"VeeamImageComponent\" data-initialized=\"true\">\n<div class=\"veeam-image__view\"><picture><source srcset=\"https:\/\/cdn.veeam.com\/content\/veeam\/en\/knowledge-base\/kb3156\/_jcr_content\/content-parsys\/section-main\/section-with-background-content\/section-sections\/section-with-background-content\/section_with_backgro_challenge\/section-with-background-content\/image\/file.web.ntfile.png\/2021-01-14%2017_35_15-Window.png?ck=1634915405208\" media=\"(max-width: 480px)\" \/><source srcset=\"https:\/\/cdn.veeam.com\/content\/veeam\/en\/knowledge-base\/kb3156\/_jcr_content\/content-parsys\/section-main\/section-with-background-content\/section-sections\/section-with-background-content\/section_with_backgro_challenge\/section-with-background-content\/image\/file.web.ntfile.png\/2021-01-14%2017_35_15-Window.png?ck=1634915405208\" media=\"(max-width: 960px)\" \/><img decoding=\"async\" class=\"veeam-image__image\" src=\"https:\/\/cdn.veeam.com\/content\/veeam\/en\/knowledge-base\/kb3156\/_jcr_content\/content-parsys\/section-main\/section-with-background-content\/section-sections\/section-with-background-content\/section_with_backgro_challenge\/section-with-background-content\/image\/file.web.ntfile.png\/2021-01-14%2017_35_15-Window.png?ck=1634915405208\" alt=\"3156errorimage\" \/><\/picture><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"section-component parbase aem-GridColumn aem-GridColumn--default--12\">\n<div class=\" veeam-component__component-spacing-below--sm\">\n<div class=\"section section--round-corners-big   \">\n<div class=\"bg-image-size-contain bg-image-position-left      \">\n<div class=\"  \">\n<div class=\"aem-Grid aem-Grid--12 aem-Grid--default--12 \">\n<div class=\"section-title-component aem-GridColumn aem-GridColumn--default--12\">\n<div class=\"section-title left \n            section-title--only-title  \"><\/p>\n<div class=\"section-title__title-block\">\n<h3 class=\"section-title__title\">Cause<\/h3>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"veeam-text text aem-GridColumn aem-GridColumn--default--12\">\n<div class=\"veeam-text  veeam-text--adaptive-mode\" data-component=\"VeeamTextComponent\" data-initialized=\"true\">The Bare Metal Recovery restore has detected that the system within the selected restore point was using MBR at the time of backup, and the system that the restore is being run on has been booted with UEFI BIOS.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"section-component parbase aem-GridColumn aem-GridColumn--default--12\">\n<div class=\" veeam-component__component-spacing-below--sm\">\n<div class=\"section section--round-corners-big   \">\n<div class=\"bg-image-size-contain bg-image-position-left      \">\n<div class=\"  \">\n<div class=\"aem-Grid aem-Grid--12 aem-Grid--tablet--12 aem-Grid--default--12 aem-Grid--phone--12 \">\n<div class=\"section-title-component aem-GridColumn aem-GridColumn--default--12\">\n<div class=\"section-title left \n            section-title--only-title  \"><\/p>\n<div class=\"section-title__title-block\">\n<h3 class=\"section-title__title\">Solution<\/h3>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"notice-component parbase aem-GridColumn--tablet--12 aem-GridColumn--offset--tablet--0 aem-GridColumn--default--none aem-GridColumn--phone--none aem-GridColumn--phone--12 aem-GridColumn--tablet--none aem-GridColumn aem-GridColumn--default--12 aem-GridColumn--offset--phone--0 aem-GridColumn--offset--default--0\">\n<div class=\"notice-component--spacing  veeam-component__component-spacing-below--lg\" data-component=\"NoticeComponent\" data-initialized=\"true\">\n<div class=\"notice notice--warning\">\n<div class=\"notice__icon\"><\/div>\n<div class=\"notice__content\">\n<div class=\"notice__title\">Change BIOS settings from UEFI to Legacy Mode<\/div>\n<div class=\"notice__text veeam-text\">\n<p>If your machine supports the legacy BIOS mode, use the legacy BIOS mode instead of the UEFI mode.<\/p>\n<p>If your machine does not support the legacy BIOS mode, the steps below will provide instructions on restoring the MBR-based backup to a UEFI system.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"veeam-text text aem-GridColumn aem-GridColumn--default--12\">\n<div class=\"veeam-text  veeam-text--adaptive-mode\" data-component=\"VeeamTextComponent\" data-initialized=\"true\">\n<ol>\n<li>Boot from the Veeam Recovery Media.<\/li>\n<li>Go to\u00a0<b>Tools\u00a0<\/b>and start the\u00a0<b>Command Prompt<\/b>\u00a0utility.<\/li>\n<li>Run the following commands one by one:\n<pre class=\"ckeditor_codeblock\"><b>diskpart<\/b>\r\nDISKPART&gt; <b>list disk<\/b>\r\n<\/pre>\n<p>At this step, find the disk that you are going to use as a restore destination for the primary operating system. In this example, we assume that disk 0 is a restore destination for the primary operating system.<\/p>\n<pre class=\"ckeditor_codeblock\">DISKPART&gt; <b>select disk 0<\/b>\r\n<\/pre>\n<p><b>Mind that the following command will remove all data from disk 0.<\/b><\/p>\n<pre class=\"ckeditor_codeblock\">DISKPART&gt; <b>clean\u00a0<\/b>\r\nDISKPART&gt; <b>convert gpt<\/b>\r\nDISKPART&gt; <b>create partition efi size=200<\/b>\r\nDISKPART&gt; <b>select partition 1<\/b>\r\nDISKPART&gt; <b>format quick fs=fat32 label=\"System\"<\/b>\r\nDISKPART&gt; <b>assign letter=G<\/b>\r\nDISKPART&gt; <b>create partition msr size=128<\/b>\r\nDISKPART&gt; <b>exit<\/b>\r\n<\/pre>\n<\/li>\n<li>Start the Bare Metal Recovery process; note that you will still see the &#8222;OS disk in backup uses MBR disk&#8220; warning during the restore process. On the &#8222;Restore Mode&#8220; tab, choose [Manual restore (advanced)].\u00a0Do not restore the system partition, and do not delete the partitions created in the previous step.<br \/>\nYou may have to configure the disk layout manually. Restore the OS volume from the backup to the free space on the destination disk.<\/li>\n<li>After the restore process completes,\u00a0<b>do not reboot the machine.<\/b><\/li>\n<li>Go to Tools &gt; Command Prompt utility and run the following commands:<br \/>\n<i><b>Note:<\/b>\u00a0The drive letter G: is used in this example as it was the drive letter created in the Diskpart example above. If you used a different letter, please adjust the command accordingly.<br \/>\n<\/i>It is advisable to use the &#8222;list vol&#8220; command within diskpart to check which drive letters were assigned to each volume.<\/p>\n<pre class=\"ckeditor_codeblock\">mkdir G:\\EFI\\Microsoft\\Boot\r\nxcopy \/s C:\\Windows\\Boot\\EFI\\*.* G:\\EFI\\Microsoft\\Boot\r\nG:\r\ncd G:\\EFI\\Microsoft\\Boot\r\nbootrec \/rebuildbcd\r\n<\/pre>\n<\/li>\n<\/ol>\n<\/div>\n<\/div>\n<div class=\"video aem-GridColumn--tablet--12 aem-GridColumn--offset--tablet--0 aem-GridColumn--default--none aem-GridColumn--phone--none aem-GridColumn--phone--12 aem-GridColumn--tablet--none aem-GridColumn aem-GridColumn--default--12 aem-GridColumn--offset--phone--0 aem-GridColumn--offset--default--0\">\n<figure class=\"video-component   \" data-component=\"Video\" data-config=\"{\n                &quot;wcmmode&quot;:&quot;DISABLED&quot;,\n                &quot;hosting&quot;: &quot;youtube&quot;,\n                &quot;videoId&quot;: &quot;3V33cOT3Bac&quot;,\n                &quot;showDuration&quot;: false,\n                &quot;behavior&quot;: &quot;inline&quot;,\n                &quot;autoplay&quot;: &quot;false&quot;,\n                &quot;customBackgroundRef&quot;: &quot;&quot;,\n                &quot;forceUnmute&quot;: &quot;&quot;,\n                &quot;displayAs&quot;: &quot;image&quot;,\n                &quot;wistiaVideoDuration&quot;: &quot;&quot;\n            }\" data-initialized=\"true\"><\/p>\n<div class=\"video-component__container\"><\/div>\n<\/figure>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"section-component parbase aem-GridColumn aem-GridColumn--default--12\">\n<div class=\" veeam-component__component-spacing-below--sm\">\n<div class=\"section section--round-corners-big   \">\n<div class=\"bg-image-size-contain bg-image-position-left      \">\n<div class=\"  \">\n<div class=\"aem-Grid aem-Grid--12 aem-Grid--default--12 \">\n<div class=\"veeam-text text aem-GridColumn aem-GridColumn--default--12\">\n<div class=\"veeam-text  veeam-text--adaptive-mode\" data-component=\"VeeamTextComponent\" data-initialized=\"true\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Aufgabe: Umzug eines Win 10 Systems, das noch auf MBR bzw. auf BIOS-Legacy Boot l\u00e4uft auf UEFI, damit das Upgrade auf Win 11 machbar ist: Bitte beachten Sie das ich keine Verantwortung f\u00fcr die L\u00f6schung Ihrer Daten durch falsche und ungeeignete Befehle \u00fcbernehme. Wenn Sie die Informationen nutzen, sollten Sie <a href=\"https:\/\/asenger.de\/blog\/wechsel-von-legacy-bios-zu-uefi-mit-veeam\/\" class=\"btn btn-link continue-link\">Continue Reading<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2861","post","type-post","status-publish","format-standard","hentry","category-allgemein"],"_links":{"self":[{"href":"https:\/\/asenger.de\/blog\/wp-json\/wp\/v2\/posts\/2861","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/asenger.de\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/asenger.de\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/asenger.de\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/asenger.de\/blog\/wp-json\/wp\/v2\/comments?post=2861"}],"version-history":[{"count":1,"href":"https:\/\/asenger.de\/blog\/wp-json\/wp\/v2\/posts\/2861\/revisions"}],"predecessor-version":[{"id":2862,"href":"https:\/\/asenger.de\/blog\/wp-json\/wp\/v2\/posts\/2861\/revisions\/2862"}],"wp:attachment":[{"href":"https:\/\/asenger.de\/blog\/wp-json\/wp\/v2\/media?parent=2861"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/asenger.de\/blog\/wp-json\/wp\/v2\/categories?post=2861"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/asenger.de\/blog\/wp-json\/wp\/v2\/tags?post=2861"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}