{"id":41883,"date":"2025-03-05T06:54:27","date_gmt":"2025-03-05T01:24:27","guid":{"rendered":"https:\/\/www.windowstechit.com\/?p=41883"},"modified":"2026-03-08T06:17:05","modified_gmt":"2026-03-08T06:17:05","slug":"boot-manager-missing","status":"publish","type":"post","link":"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/","title":{"rendered":"5 Best Solutions to Fix &#8220;BOOTMGR is Missing&#8221; Error in Windows"},"content":{"rendered":"\n<p>Have you encountered the dreaded <strong>\u201cBOOTMGR is Missing&#8221;? Are you seeing the &#8220;Press Ctrl+Alt+Del to restart\u201d<\/strong> error on your Windows PC? If so, you\u2019re not alone. This frustrating issue can prevent your system from booting properly, leaving you stuck at a black screen with no access to your files or programs. But don\u2019t worry\u2014this guide will help you understand what <strong>BOOTMGR (Windows Boot Manager)<\/strong> is, why this error occurs, and the best solutions to fix it.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#What_is_BOOTMGR\" >What is BOOTMGR?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#Common_Causes_of_Boot_Manager_Missing_Error\" >Common Causes of Boot Manager Missing Error<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#1_Corrupt_Boot_Sector_or_Master_Boot_Record_MBR\" >1. Corrupt Boot Sector or Master Boot Record (MBR)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#2_Incorrect_Boot_Order_in_BIOSUEFI\" >2. Incorrect Boot Order in BIOS\/UEFI<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#3_Damaged_Hard_Drive_or_SSD\" >3. Damaged Hard Drive or SSD<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#4_Corrupt_Windows_System_Files\" >4. Corrupt Windows System Files<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#5_Accidental_Deletion_of_Boot_Configuration_Data_BCD\" >5. Accidental Deletion of Boot Configuration Data (BCD)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#6_Disconnected_or_Failing_Storage_Drive\" >6. Disconnected or Failing Storage Drive<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#Solution_1_Run_Startup_Repair_from_Windows_Recovery_Environment_WinRE\" >Solution 1: Run Startup Repair from Windows Recovery Environment (WinRE)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#Why_Use_Startup_Repair\" >Why Use Startup Repair?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#Steps_to_Perform_Startup_Repair\" >Steps to Perform Startup Repair<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#Solution_2_Rebuild_the_Boot_Configuration_Data_BCD\" >Solution 2: Rebuild the Boot Configuration Data (BCD)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#Why_Rebuild_BCD\" >Why Rebuild BCD?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#Steps_to_Rebuild_BCD_Using_Command_Prompt\" >Steps to Rebuild BCD Using Command Prompt<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#Solution_3_Repair_the_Master_Boot_Record_MBR\" >Solution 3: Repair the Master Boot Record (MBR)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#Why_Repair_MBR\" >Why Repair MBR?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#Method_1_Repair_MBR_Using_Command_Prompt\" >Method 1: Repair MBR Using Command Prompt<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#Method_2_Rebuild_MBR_Using_AOMEI_Partition_Assistant\" >Method 2: Rebuild MBR Using AOMEI Partition Assistant<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#Solution_4_Check_and_Modify_Boot_Order_in_BIOS\" >Solution 4: Check and Modify Boot Order in BIOS<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#Why_Check_Boot_Order\" >Why Check Boot Order?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#Steps_to_Set_Correct_Boot_Order\" >Steps to Set Correct Boot Order<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#Solution_5_Perform_a_Clean_Windows_Installation\" >Solution 5: Perform a Clean Windows Installation<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#When_to_Perform_a_Clean_Installation\" >When to Perform a Clean Installation?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#Steps_to_Perform_a_Clean_Windows_Installation\" >Steps to Perform a Clean Windows Installation<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#Conclusion\" >Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#How_to_Fix_%E2%80%9CBoot_Manager_is_Missing%E2%80%9D_Error%E2%80%9410_Solutions_from_Microsoft_Forum_Users\" >How to Fix &#8220;Boot Manager is Missing&#8221; Error\u201410 Solutions from Microsoft Forum Users<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#1_Use_Windows_Installation_Media_to_Repair_Boot_Manager\" >1. Use Windows Installation Media to Repair Boot Manager<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#2_Rebuild_the_Boot_Configuration_Data_BCD\" >2. Rebuild the Boot Configuration Data (BCD)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#3_Check_Boot_Order_in_BIOS\" >3. Check Boot Order in BIOS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#4_Use_Bootrecexe_to_Fix_MBR_and_Boot_Sector\" >4. Use Bootrec.exe to Fix MBR and Boot Sector<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#5_Disable_Secure_Boot_in_BIOS\" >5. Disable Secure Boot in BIOS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#6_Set_Active_Partition_Using_Diskpart\" >6. Set Active Partition Using Diskpart<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#7_Perform_System_Restore\" >7. Perform System Restore<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#8_Remove_External_Drives\" >8. Remove External Drives<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#9_Run_CHKDSK_to_Repair_Disk_Errors\" >9. Run CHKDSK to Repair Disk Errors<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"https:\/\/www.windowstechit.com\/41883\/boot-manager-missing\/#10_Reinstall_Windows_as_a_Last_Resort\" >10. Reinstall Windows as a Last Resort<\/a><\/li><\/ul><\/nav><\/div>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_BOOTMGR\"><\/span><strong>What is BOOTMGR?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><strong>BOOTMGR (Boot Manager)<\/strong> is an essential component of Windows that helps your operating system start correctly. It works in conjunction with the <strong>Boot Configuration Data (BCD)<\/strong> to locate and launch Windows during startup. If BOOTMGR is missing, damaged, or misconfigured, your PC will fail to boot, leading to the infamous <strong>&#8220;BOOTMGR is missing&#8221; error<\/strong> message.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/www.windowstechit.com\/wp-content\/uploads\/2025\/03\/bootmgr-is-missing-errors.png\" alt=\"\" class=\"wp-image-41893\" title=\"\"><figcaption><\/figcaption><\/figure>\n\n\n\n<p>Source: answers.microsoft.com and other forums and pictures generated using AI tools.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Common_Causes_of_Boot_Manager_Missing_Error\"><\/span><strong>Common Causes of Boot Manager Missing Error<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Corrupt_Boot_Sector_or_Master_Boot_Record_MBR\"><\/span><strong>1. Corrupt Boot Sector or Master Boot Record (MBR)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>The <strong>Master Boot Record (MBR)<\/strong> is a crucial component of the boot process. If the MBR gets corrupted due to malware attacks, unexpected shutdowns, or faulty updates, the system might fail to locate <strong>BOOTMGR<\/strong>, resulting in a startup failure.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Incorrect_Boot_Order_in_BIOSUEFI\"><\/span><strong>2. Incorrect Boot Order in BIOS\/UEFI<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>BIOS\/UEFI settings dictate the sequence in which the computer checks storage devices for bootable files. If an external device, such as a USB drive or DVD, is set as the first boot option instead of the internal hard drive, Windows may fail to find BOOTMGR, which is the Boot Manager responsible for starting the operating system.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Damaged_Hard_Drive_or_SSD\"><\/span><strong>3. Damaged Hard Drive or SSD<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>A failing hard drive or SSD may contain hazardous sectors or corrupted data, leading to missing BOOTMGR errors. If your storage drive suffers physical damage, the system will encounter difficulties in retrieving boot information, resulting in startup issues.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Corrupt_Windows_System_Files\"><\/span><strong>4. Corrupt Windows System Files<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>System files are essential for Windows to function correctly. Unexpected shutdowns, power failures, or malware infections can corrupt critical system files, including those related to the Windows Boot Manager.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Accidental_Deletion_of_Boot_Configuration_Data_BCD\"><\/span><strong>5. Accidental Deletion of Boot Configuration Data (BCD)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>The <strong>Boot Configuration Data (BCD)<\/strong> stores important information required to start Windows. If this data is accidentally deleted, misconfigured, or becomes corrupted, the BOOTMGR (Boot Manager) error will appear.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_Disconnected_or_Failing_Storage_Drive\"><\/span><strong>6. Disconnected or Failing Storage Drive<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>Windows cannot access the BOOTMGR file if the primary hard drive or SSD is not properly connected or is failing. Loose SATA cables, faulty power connections, or drive failures can all contribute to this issue.<\/p>\n\n\n\n<p>This guide covers the five best solutions for fixing the &#8220;BOOTMGR is missing&#8221; error in Windows 7, 8, 10, and 11.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/www.windowstechit.com\/wp-content\/uploads\/2025\/03\/boot-manager-missing-windows.png\" alt=\"boot manager missing windows 10 11 7\" class=\"wp-image-41891\" title=\"\"><figcaption><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Solution_1_Run_Startup_Repair_from_Windows_Recovery_Environment_WinRE\"><\/span>Solution 1: Run Startup Repair from Windows Recovery Environment (WinRE)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Use_Startup_Repair\"><\/span>Why Use Startup Repair?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Startup Repair is a built-in Windows tool that automatically fixes boot-related issues, including missing <strong>BOOTMGR<\/strong> errors.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Steps_to_Perform_Startup_Repair\"><\/span>Steps to Perform Startup Repair<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Insert a bootable Windows installation media<\/strong> (USB\/DVD).<\/li>\n\n\n\n<li>Restart your PC and <strong>boot from the installation media<\/strong> (press F2, F12, or DEL to access BIOS and change boot priority if needed).<\/li>\n\n\n\n<li>Select <strong>&#8220;Repair your computer&#8221;<\/strong> from the Windows setup screen.<\/li>\n\n\n\n<li>Navigate to <strong>&#8220;Troubleshoot&#8221; > &#8220;Advanced Options&#8221; > &#8220;Startup <\/strong>Repair.&#8221;<\/li>\n\n\n\n<li>Select your Windows installation and follow the on-screen instructions.<\/li>\n\n\n\n<li>After completion, restart your computer and check if the issue is resolved.<\/li>\n<\/ol>\n\n\n\n<p>If Startup Repair does not fix the problem, proceed to the next solution.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Solution_2_Rebuild_the_Boot_Configuration_Data_BCD\"><\/span>Solution 2: Rebuild the Boot Configuration Data (BCD)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Rebuild_BCD\"><\/span><strong>Why Rebuild BCD?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>A corrupted or missing <strong>Boot Configuration Data (BCD)<\/strong> can prevent Windows from booting, resulting in the BOOTMGR error.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Steps_to_Rebuild_BCD_Using_Command_Prompt\"><\/span><strong>Steps to Rebuild BCD Using Command Prompt<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Boot into <strong>Windows Recovery Environment (WinRE)<\/strong> using a bootable USB\/DVD.<\/li>\n\n\n\n<li>Click on <strong>&#8220;Repair your computer&#8221; > &#8220;Troubleshoot&#8221; > &#8220;Advanced Options&#8221; > &#8220;Command <\/strong>Prompt.&#8221;<\/li>\n\n\n\n<li>In the Command Prompt window, type the following commands:<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>bootrec \/fixmbr\nbootrec \/fixboot\nbootrec \/scanos\nbootrec \/rebuildbcd\n<\/code><\/pre>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li>Press <strong>Enter<\/strong> after each command and wait for completion.<\/li>\n\n\n\n<li>Restart your system and check if the BOOTMGR (Boot Manager) error persists.<\/li>\n<\/ol>\n\n\n\n<p>If the above step does not resolve the issue, try repairing the <strong>Master Boot Record (MBR).<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Solution_3_Repair_the_Master_Boot_Record_MBR\"><\/span>Solution 3: Repair the Master Boot Record (MBR)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Repair_MBR\"><\/span><strong>Why Repair MBR?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>The <strong>Master Boot Record (MBR)<\/strong> is a crucial part of the boot process. If the Master Boot Record (MBR) becomes corrupted, it can trigger the BOOTMGR (Boot Manager) error.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Method_1_Repair_MBR_Using_Command_Prompt\"><\/span>Method 1: Repair MBR Using Command Prompt<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Access <strong>Command Prompt<\/strong> from <strong>WinRE<\/strong> as explained earlier.<\/li>\n\n\n\n<li>Type the following command and press <strong>Enter<\/strong>:<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>bootrec \/fixmbr\n<\/code><\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li>Restart your PC and see if the issue is fixed.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Method_2_Rebuild_MBR_Using_AOMEI_Partition_Assistant\"><\/span>Method 2: Rebuild MBR Using AOMEI Partition Assistant<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Download <strong>AOMEI Partition Assistant<\/strong> on another working PC.<\/li>\n\n\n\n<li>Create a <strong>bootable USB drive<\/strong> using AOMEI Partition Assistant.<\/li>\n\n\n\n<li>Boot the problematic PC using the bootable USB.<\/li>\n\n\n\n<li>Select <strong>Rebuild MBR<\/strong> from the options.<\/li>\n\n\n\n<li>Apply changes and restart your system.<\/li>\n<\/ol>\n\n\n\n<p>This step should repair the boot loader and resolve the BOOTMGR missing issue.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Solution_4_Check_and_Modify_Boot_Order_in_BIOS\"><\/span>Solution 4: Check and Modify Boot Order in BIOS<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Check_Boot_Order\"><\/span>Why Check Boot Order?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>If your boot order is incorrect, your system might try to boot from an external device instead of your main hard drive, leading to the BOOTMGR (Boot Manager) error.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Steps_to_Set_Correct_Boot_Order\"><\/span>Steps to Set Correct Boot Order<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Restart your PC and enter <strong>BIOS\/UEFI<\/strong> (press the F2, F12, ESC, or DEL key during startup).<\/li>\n\n\n\n<li>Navigate to <strong>Boot Options<\/strong>.<\/li>\n\n\n\n<li>Ensure that your main hard drive (where Windows is installed) is set as the <strong>first boot device<\/strong>.<\/li>\n\n\n\n<li>Save changes and restart your PC.<\/li>\n<\/ol>\n\n\n\n<p>If the issue persists, proceed to the final solution.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Solution_5_Perform_a_Clean_Windows_Installation\"><\/span>Solution 5: Perform a Clean Windows Installation<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"When_to_Perform_a_Clean_Installation\"><\/span>When to Perform a Clean Installation?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>If all other methods fail, reinstalling Windows becomes the final option. A clean installation erases all files and software, so back up important data first.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Steps_to_Perform_a_Clean_Windows_Installation\"><\/span>Steps to Perform a Clean Windows Installation<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Create a Bootable Windows USB\/DVD<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Download the <strong>Windows Media Creation Tool<\/strong> from Microsoft&#8217;s website.<\/li>\n\n\n\n<li>Create a bootable USB using <strong>Rufus<\/strong> or Windows&#8217; built-in tool.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Boot from the Installation Media<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Restart your PC and boot into the USB\/DVD.<\/li>\n\n\n\n<li>Select <strong>&#8220;Install <\/strong>Now.&#8221;<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Delete Existing Partitions<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Choose <strong>Custom Installation<\/strong> and delete the old Windows partition.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Install Windows<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Follow the on-screen instructions to complete the installation.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>Once Windows is installed, update all drivers and security patches to prevent future errors.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Fixing the <strong>BOOTMGR is missing<\/strong> error is crucial for restoring your system\u2019s functionality. The five best solutions covered in this guide include:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>You can run Startup Repair<\/strong> from WinRE.<\/li>\n\n\n\n<li><strong>Rebuilding Boot Configuration Data (BCD).<\/strong><\/li>\n\n\n\n<li><strong>The Master Boot Record (MBR) is being repaired.<\/strong><\/li>\n\n\n\n<li><strong>The next step involves checking and modifying the boot order in the BIOS.<\/strong><\/li>\n\n\n\n<li><strong>You can resolve the error and restore your system by performing a clean Windows installation.<\/strong><\/li>\n<\/ol>\n\n\n\n<p>By following these methods, you can effectively resolve the error and get your system running again. If none of these solutions work, consider seeking professional assistance to check for <strong>hardware failures<\/strong> or <strong>disk corruption<\/strong>.<\/p>\n\n\n\n<p>The &#8220;Boot Manager is Missing&#8221; error can be alarming, but these proven solutions from Microsoft forum users show that it can be fixed in multiple ways. Try these methods one by one, starting with the simpler ones, and get your system running again!<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Fix_%E2%80%9CBoot_Manager_is_Missing%E2%80%9D_Error%E2%80%9410_Solutions_from_Microsoft_Forum_Users\"><\/span>How to Fix &#8220;Boot Manager is Missing&#8221; Error\u201410 Solutions from Microsoft Forum Users<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>One of the most frustrating errors Windows users encounter is the dreaded &#8220;Boot Manager is Missing&#8221; message. This issue usually occurs when the <a href=\"https:\/\/www.lifewire.com\/how-to-rebuild-the-bcd-in-windows-2624508\" target=\"_blank\" rel=\"noopener\">Boot Configuration Data (BCD) is corrupted<\/a>, the Master Boot Record (MBR) is damaged, or the system drive is not properly recognized. Fortunately, many Microsoft forum users have successfully resolved this issue. Here are 10 solutions shared by real users who fixed the error.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Use_Windows_Installation_Media_to_Repair_Boot_Manager\"><\/span>1. Use Windows Installation Media to Repair Boot Manager<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Microsoft forum user @TechPro2022 resolved the issue by booting from a Windows installation USB\/DVD and using the <strong>Startup Repair<\/strong> tool. He shared:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>&#8220;I inserted my Windows 10 installation USB, selected \u2018Repair your computer,\u2019 and then ran Startup Repair. It fixed my boot files instantly.&#8221;<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Rebuild_the_Boot_Configuration_Data_BCD\"><\/span>2. Rebuild the Boot Configuration Data (BCD)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>User @Fix ItMike suggested rebuilding the BCD using Command Prompt. He explained:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>&#8220;After booting into Windows recovery mode, I opened Command Prompt and typed the following commands:<\/p>\n<\/blockquote>\n\n\n\n<pre class=\"wp-block-code\"><code>bcdboot c:\\windows\nbootrec \/fixmbr\nbootrec \/fixboot\nbootrec \/scanos\nbootrec \/rebuildbcd\n<\/code><\/pre>\n\n\n\n<p>Restarted my computer, and it worked!&#8221;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Check_Boot_Order_in_BIOS\"><\/span>3. Check Boot Order in BIOS<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>User @SystemGeek shared that the boot sequence in BIOS was incorrect. He fixed it by:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>He entered the BIOS by pressing F2 at startup, set his system drive as the first boot device, saved the changes, and restarted. The problem was resolved!<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Use_Bootrecexe_to_Fix_MBR_and_Boot_Sector\"><\/span>4. Use Bootrec.exe to Fix MBR and Boot Sector<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>A user named @JohnTheFixer recommended another way to repair the Master Boot Record:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>&#8220;I booted into recovery, opened CMD, and ran <code>bootrec \/fixmbr<\/code> and <code>bootrec \/fixboot<\/code>. This method restored my boot sector and fixed the issue.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Disable_Secure_Boot_in_BIOS\"><\/span>5. Disable Secure Boot in BIOS<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>User @JaneIT found that Secure Boot was interfering with booting:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>&#8220;I disabled Secure Boot in my BIOS settings, and my system booted normally again. Seems like my Windows install wasn&#8217;t compatible with Secure Boot.&#8221;<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_Set_Active_Partition_Using_Diskpart\"><\/span>6. Set Active Partition Using Diskpart<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>User @BootFix Guy shared that marking the correct partition as active helped:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>&#8220;I booted into recovery, ran <code>diskpart<\/code>, selected my system drive, and set it as active using:<\/p>\n<\/blockquote>\n\n\n\n<pre class=\"wp-block-code\"><code>diskpart\nselect disk 0\nselect partition 1\nactive\n<\/code><\/pre>\n\n\n\n<p>Rebooted, and it worked!&#8221;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"7_Perform_System_Restore\"><\/span>7. Perform System Restore<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>A forum user, @RecoveryKing, recommended using System Restore:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>&#8220;I used System Restore to go back to a point before the issue started. This brought my system back to life without affecting my files.&#8221;<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"8_Remove_External_Drives\"><\/span>8. Remove External Drives<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>User @USBFix warned that external drives can sometimes cause boot issues:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>&#8220;I had a USB drive plugged in, and for some reason, my PC was trying to boot from it. Unplugged it, restarted, and Windows loaded fine.&#8221;<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"9_Run_CHKDSK_to_Repair_Disk_Errors\"><\/span>9. Run CHKDSK to Repair Disk Errors<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>User @HDD Helper shared:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>&#8220;I ran <code>chkdsk c: \/f \/r<\/code> to scan and fix bad sectors on my drive. After the repair was completed, my system booted without issues.&#8221;<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"10_Reinstall_Windows_as_a_Last_Resort\"><\/span>10. Reinstall Windows as a Last Resort<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Finally, @ReinstallRandy stated:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>&#8220;Nothing worked for me, so I backed up my data, formatted the drive, and did a clean Windows install. It was a hassle, but at least my PC runs smoothly now.&#8221;<\/p>\n<\/blockquote>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Have you encountered the dreaded \u201cBOOTMGR is Missing&#8221;? Are you seeing the &#8220;Press Ctrl+Alt+Del to restart\u201d error on your Windows PC? If so, you\u2019re not alone. This frustrating issue can prevent your system from booting properly, leaving you stuck at a black screen with no access to your files or programs. But don\u2019t worry\u2014this guide&#8230;<\/p>\n","protected":false},"author":2,"featured_media":56240,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[382],"tags":[],"class_list":["post-41883","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-solved"],"taxonomy_info":{"category":[{"value":382,"label":"Solved"}]},"featured_image_src_large":["https:\/\/www.windowstechit.com\/wp-content\/uploads\/2025\/03\/bootmgr-is-missing-errors-1024x592.png",1024,592,true],"author_info":{"display_name":"Palla Sridhar","author_link":"https:\/\/www.windowstechit.com\/author\/srekar689\/"},"comment_info":0,"category_info":[{"term_id":382,"name":"Solved","slug":"solved","term_group":0,"term_taxonomy_id":382,"taxonomy":"category","description":"","parent":0,"count":61,"filter":"raw","cat_ID":382,"category_count":61,"category_description":"","cat_name":"Solved","category_nicename":"solved","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/www.windowstechit.com\/wp-json\/wp\/v2\/posts\/41883","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.windowstechit.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.windowstechit.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.windowstechit.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.windowstechit.com\/wp-json\/wp\/v2\/comments?post=41883"}],"version-history":[{"count":0,"href":"https:\/\/www.windowstechit.com\/wp-json\/wp\/v2\/posts\/41883\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.windowstechit.com\/wp-json\/wp\/v2\/media\/56240"}],"wp:attachment":[{"href":"https:\/\/www.windowstechit.com\/wp-json\/wp\/v2\/media?parent=41883"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.windowstechit.com\/wp-json\/wp\/v2\/categories?post=41883"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.windowstechit.com\/wp-json\/wp\/v2\/tags?post=41883"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}