{"id":598,"date":"2014-12-30T06:03:00","date_gmt":"2014-12-30T14:03:00","guid":{"rendered":"https:\/\/kb.terabyteunlimited.com\/kb-articles\/unable-to-install-windows-to-mbr-disk-on-uefi-system\/"},"modified":"2026-01-06T16:55:06","modified_gmt":"2026-01-07T00:55:06","slug":"unable-to-install-windows-to-mbr-disk-on-uefi-system","status":"publish","type":"lsvr_kba","link":"https:\/\/www.terabyteunlimited.com\/kb\/kb-articles\/unable-to-install-windows-to-mbr-disk-on-uefi-system\/","title":{"rendered":"Unable to Install Windows to MBR Disk on UEFI System"},"content":{"rendered":"<p><strong><font color=\"#ff5500\">Problem:<\/font><\/strong> <\/p>\r\n  <p>On UEFI systems, when you try to install Windows 7\/8.x\/10\/11 to a normal MBR partition, the Windows installer will not let you install to the selected disk. <strong>Note:<\/strong> Windows 11 does not support being installed to an MBR partition or in non-UEFI (Legacy) boot mode.<\/p>\r\n  <blockquote>\r\n    <p><font color=\"#ff0000\">Windows cannot be installed to Disk # Partition #. (Show details)<\/font><\/p>\r\n    <p>This message is displayed if you show the details:<\/p>\r\n    <p><font color=\"#ff0000\">Windows  cannot be installed to this disk. The selected disk has an MBR <br \/>\r\n      partition table.  On EFI systems, Windows can only be installed to GPT disks.<\/font><\/p>\r\n  <\/blockquote>\r\n  <p>Additionally, attempting to install to an unpartitioned MBR disk will not result in the desired configuration since the disk will be converted to GPT.<\/p>\r\n  <p><strong><font color=\"#ff5500\">Cause:<\/font><\/strong> <\/p>\r\n<p>The Windows installation media is being booted in UEFI mode.<\/p>\r\n  <p><strong><font color=\"#ff5500\">Solution:<\/font><\/strong><\/p>\r\n  <p>Boot the Windows 7\/8.x\/10 installation media in non-UEFI (Legacy) mode. If the BIOS boot selection menu shows both UEFI and non-UEFI boot modes for the booting drive (CD\/DVD, USB flash drive) choose to boot the non-UEFI item. Otherwise, enable Legacy booting in the BIOS. Depending on the BIOS this may require disabling UEFI booting.<\/p>\r\n","protected":false},"excerpt":{"rendered":"<p>Problem: On UEFI systems, when you try to install Windows 7\/8.x\/10\/11 to a normal MBR partition, the Windows installer will not let you install to the selected disk. Note: Windows 11 does not support being installed to an MBR partition or in non-UEFI (Legacy) boot mode. Windows cannot be installed to Disk # Partition #. [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"lsvr_kba_cat":[1817],"lsvr_kba_tag":[2127,2142,2140,2141],"class_list":["post-598","lsvr_kba","type-lsvr_kba","status-publish","hentry","lsvr_kba_cat-vista-win7-8-x-10","lsvr_kba_tag-windows","lsvr_kba_tag-windows-10","lsvr_kba_tag-windows-7","lsvr_kba_tag-windows-8-x"],"_links":{"self":[{"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/lsvr_kba\/598","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/lsvr_kba"}],"about":[{"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/types\/lsvr_kba"}],"author":[{"embeddable":true,"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/comments?post=598"}],"version-history":[{"count":2,"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/lsvr_kba\/598\/revisions"}],"predecessor-version":[{"id":7272,"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/lsvr_kba\/598\/revisions\/7272"}],"wp:attachment":[{"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/media?parent=598"}],"wp:term":[{"taxonomy":"lsvr_kba_cat","embeddable":true,"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/lsvr_kba_cat?post=598"},{"taxonomy":"lsvr_kba_tag","embeddable":true,"href":"https:\/\/www.terabyteunlimited.com\/kb\/wp-json\/wp\/v2\/lsvr_kba_tag?post=598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}