{"id":80550,"date":"2026-03-23T12:16:37","date_gmt":"2026-03-23T06:46:37","guid":{"rendered":"https:\/\/www.winhelponline.com\/blog\/?p=80550"},"modified":"2026-03-23T12:17:23","modified_gmt":"2026-03-23T06:47:23","slug":"backup-the-efi-system-partition","status":"publish","type":"post","link":"https:\/\/www.winhelponline.com\/blog\/backup-the-efi-system-partition\/","title":{"rendered":"How to Backup the EFI System Partition"},"content":{"rendered":"<p>The EFI partition contains the boot files and the boot configuration database (BCD). Some OEMs also store the BIOS image backups and additional tools in the EFI partition. This post explains how to back up the files in the EFI partition.<\/p>\n<h2>Backup the EFI System Partition<\/h2>\n<p>The EFI partition has a special partition identifier, so Windows doesn&#8217;t assign a drive letter to it by default. To access the partition and back up the data from that partition, please do the following:<\/p>\n<p>Open <a href=\"https:\/\/www.winhelponline.com\/blog\/open-elevated-command-prompt-windows\/\">Command Prompt (admin)<\/a> and run the following commands:<\/p>\n<pre class=\"cmd\">mountvol Y: \/s\r\n\r\nrobocopy y:\\ C:\\Backup \/mir\r\n\r\nbcdedit \/export C:\\Backup\\EFI\\Microsoft\\Boot\\BCD\r\n<\/pre>\n<p>The above commands recursively copy all files from the EFI partition to the C:\\Backup folder. The BCD is also exported.<\/p>\n<p>After running the commands, verify that the BCD, boot files, and OEM tools (if any) have been successfully copied to <strong>C:\\Backup<\/strong>. You may then move the\u00a0<strong>C:\\Backup<\/strong>\u00a0folder to an external drive if required.<\/p>\n<h3>Related articles<\/h3>\n<p><a href=\"https:\/\/www.winhelponline.com\/blog\/resize-efi-system-partition\/\">How to Resize the EFI System Partition in Windows<\/a><\/p>\n<p><a href=\"https:\/\/www.winhelponline.com\/blog\/rebuild-efi-partition-bcd-boot-files\/\">How to Rebuild the EFI Boot Partition, BCD and Boot Files<\/a><\/p>\n<p><a href=\"https:\/\/www.winhelponline.com\/blog\/fix-efi-boot-partition-guid-set-id\/\">How to Fix the EFI Boot Partition&#8217;s ID Using DiskPart<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The EFI partition contains the boot files and the boot configuration database (BCD). Some OEMs also store the BIOS image backups and additional tools in the EFI partition. This post explains how to back up the files in the EFI partition. Backup the EFI System Partition The EFI partition has a special partition identifier, so &#8230; <a title=\"How to Backup the EFI System Partition\" class=\"read-more\" href=\"https:\/\/www.winhelponline.com\/blog\/backup-the-efi-system-partition\/\" aria-label=\"Read more about How to Backup the EFI System Partition\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[8,869],"tags":[106],"class_list":["post-80550","post","type-post","status-publish","format-standard","hentry","category-windows-10","category-windows-11","tag-command-prompt"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":32027,"url":"https:\/\/www.winhelponline.com\/blog\/rebuild-efi-partition-bcd-boot-files\/","url_meta":{"origin":80550,"position":0},"title":"How to Rebuild the EFI Boot Partition, BCD and Boot Files","author":"Ramesh","date":"January 17, 2023","format":false,"excerpt":"The EFI boot partition is a FAT32 partition that stores the boot files and the boot configuration data (BCD) to load Windows. Sometimes, the boot partition or the BCD may get corrupted, and the boot files remain unserviceable by the Windows Setup process. In that case, rebuilding the EFI partition\u2026","rel":"","context":"In &quot;Windows 10&quot;","block_context":{"text":"Windows 10","link":"https:\/\/www.winhelponline.com\/blog\/category\/microsoft\/windows\/windows-10\/"},"img":{"alt_text":"EFI partition shows as RAW","src":"https:\/\/i0.wp.com\/www.winhelponline.com\/blog\/wp-content\/uploads\/2023\/01\/efi-raw-diskmgmt.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.winhelponline.com\/blog\/wp-content\/uploads\/2023\/01\/efi-raw-diskmgmt.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.winhelponline.com\/blog\/wp-content\/uploads\/2023\/01\/efi-raw-diskmgmt.png?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":61178,"url":"https:\/\/www.winhelponline.com\/blog\/0x80070003-0x20008-error-feature-update\/","url_meta":{"origin":80550,"position":1},"title":"0x80070003 &#8211; 0x20008 &#8211; Windows 10\/11 Feature Update Error","author":"Ramesh","date":"September 4, 2023","format":false,"excerpt":"When you attempt to install a Feature Update, the error code 0x80070003 - 0x20008 may appear. The\u00a0Setupact.log file may show the following contents: Info CONX ConX::Compatibility::CSystemAbstraction::HostIsUEFIFirmware: Host is UEFI. Error CONX ConX::Compatibility::CSystemAbstraction::HostIsUEFIDiskLayout: Failed to retrieve system partition NT path. Error CONX CHostIsUEFICompliantChecker failed. [Failed to check whether host has UEFI\u2026","rel":"","context":"In &quot;Windows 10&quot;","block_context":{"text":"Windows 10","link":"https:\/\/www.winhelponline.com\/blog\/category\/microsoft\/windows\/windows-10\/"},"img":{"alt_text":"efi boot partition - disk management","src":"https:\/\/i0.wp.com\/www.winhelponline.com\/blog\/wp-content\/uploads\/2023\/09\/efi-system-partition-diskmgmt.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.winhelponline.com\/blog\/wp-content\/uploads\/2023\/09\/efi-system-partition-diskmgmt.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.winhelponline.com\/blog\/wp-content\/uploads\/2023\/09\/efi-system-partition-diskmgmt.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.winhelponline.com\/blog\/wp-content\/uploads\/2023\/09\/efi-system-partition-diskmgmt.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":74860,"url":"https:\/\/www.winhelponline.com\/blog\/create-move-efi-partition-windows\/","url_meta":{"origin":80550,"position":2},"title":"How to Move EFI System Partition to Another Drive in Windows 10 or 11","author":"Ramesh","date":"April 18, 2024","format":false,"excerpt":"The EFI partition is created automatically when you install Windows. However, after adding a second HDD\/SSD and installing Windows on that disk, you may realize that the EFI system partition remains on the old hard disk. You wonder how to move the EFI partition from the old hard drive to\u2026","rel":"","context":"In &quot;Windows 10&quot;","block_context":{"text":"Windows 10","link":"https:\/\/www.winhelponline.com\/blog\/category\/microsoft\/windows\/windows-10\/"},"img":{"alt_text":"EFI boot partition on another disk","src":"https:\/\/i0.wp.com\/www.winhelponline.com\/blog\/wp-content\/uploads\/2024\/04\/move-efi-partition-os-drive.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.winhelponline.com\/blog\/wp-content\/uploads\/2024\/04\/move-efi-partition-os-drive.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.winhelponline.com\/blog\/wp-content\/uploads\/2024\/04\/move-efi-partition-os-drive.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.winhelponline.com\/blog\/wp-content\/uploads\/2024\/04\/move-efi-partition-os-drive.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":74838,"url":"https:\/\/www.winhelponline.com\/blog\/fix-efi-boot-partition-guid-set-id\/","url_meta":{"origin":80550,"position":3},"title":"How to Fix the EFI Boot Partition&#8217;s ID Using DiskPart","author":"Ramesh","date":"April 17, 2024","format":false,"excerpt":"Each partition type is strictly identified by a GUID number. For example, the data partitions (\"Basic data partition\") are identified by the GUID ebd0a0a2-b9e5-4433-87c0-68b6b72699c7. The EFI partition has the GUID c12a7328-f81f-11d2-ba4b-00a0c93ec93b. However, on some systems, the EFI partition may have an incorrect ID assigned for unknown reasons. As a result,\u2026","rel":"","context":"In &quot;Windows 10&quot;","block_context":{"text":"Windows 10","link":"https:\/\/www.winhelponline.com\/blog\/category\/microsoft\/windows\/windows-10\/"},"img":{"alt_text":"fix EFI partition id using diskpart's set id command.","src":"https:\/\/i0.wp.com\/www.winhelponline.com\/blog\/wp-content\/uploads\/2024\/04\/diskpart-fix-efi-partition-guid.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.winhelponline.com\/blog\/wp-content\/uploads\/2024\/04\/diskpart-fix-efi-partition-guid.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.winhelponline.com\/blog\/wp-content\/uploads\/2024\/04\/diskpart-fix-efi-partition-guid.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.winhelponline.com\/blog\/wp-content\/uploads\/2024\/04\/diskpart-fix-efi-partition-guid.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":74926,"url":"https:\/\/www.winhelponline.com\/blog\/reagentc-exe-operation-failed-2\/","url_meta":{"origin":80550,"position":4},"title":"REAGENTC.EXE: Operation failed: Error 2 or Error 3bc3","author":"Ramesh","date":"April 24, 2024","format":false,"excerpt":"When you attempt to enable Windows RE by running the reagentc \/enable command, the following error may be shown: REAGENTC.EXE: Operation failed: 2 REAGENTC.EXE: An error has occurred. (or) REAGENTC.EXE: Operation failed: 3bc3 or REAGENTC.EXE: Unable to update Boot Configuration Data. The ReAgent.log may record the following error: Info [ReAgentc.exe]\u2026","rel":"","context":"In &quot;Windows 10&quot;","block_context":{"text":"Windows 10","link":"https:\/\/www.winhelponline.com\/blog\/category\/microsoft\/windows\/windows-10\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":59586,"url":"https:\/\/www.winhelponline.com\/blog\/bcd-0xc0000098-error-boot\/","url_meta":{"origin":80550,"position":5},"title":"[Fix] BCD Error 0xc0000098 During Boot","author":"Ramesh","date":"July 21, 2023","format":false,"excerpt":"When you start your computer, BCD error 0xc0000098 may appear, and pressing F1 may boot the system into Windows. Here's the entire error message: Recovery Your PC\/Device needs to be repaired The Boot Configuration Data file doesn't contain valid information for an operating System File: \\Boot\\BCD Error code: 0xc0000098 You'll\u2026","rel":"","context":"In &quot;Windows 10&quot;","block_context":{"text":"Windows 10","link":"https:\/\/www.winhelponline.com\/blog\/category\/microsoft\/windows\/windows-10\/"},"img":{"alt_text":"bcd error 0xc0000098","src":"https:\/\/i0.wp.com\/www.winhelponline.com\/blog\/wp-content\/uploads\/2023\/07\/0xc0000098-bcd-error.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.winhelponline.com\/blog\/wp-content\/uploads\/2023\/07\/0xc0000098-bcd-error.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.winhelponline.com\/blog\/wp-content\/uploads\/2023\/07\/0xc0000098-bcd-error.png?resize=525%2C300&ssl=1 1.5x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.winhelponline.com\/blog\/wp-json\/wp\/v2\/posts\/80550","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.winhelponline.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.winhelponline.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.winhelponline.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.winhelponline.com\/blog\/wp-json\/wp\/v2\/comments?post=80550"}],"version-history":[{"count":0,"href":"https:\/\/www.winhelponline.com\/blog\/wp-json\/wp\/v2\/posts\/80550\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.winhelponline.com\/blog\/wp-json\/wp\/v2\/media?parent=80550"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.winhelponline.com\/blog\/wp-json\/wp\/v2\/categories?post=80550"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.winhelponline.com\/blog\/wp-json\/wp\/v2\/tags?post=80550"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}