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Questions tagged [bcd]

BCD means Boot Configuration Data on Windows Vista and higher. Its data stores boot configuration values and controls how Windows is started.

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How to view boot debugging logs BCDedit

To expand on the title, Ive setup debugging of my boot sequence with the following commands: bcdedit /bootdebug {bootmgr} on bcdedit /bootdebug on bcdedit /debug on Where does BCDedit store debug ...
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windows 10 BCD issue [UPDATE 11/3/23]

Relevant specs: GPT format, ASUS Q503U (laptop 2016), UEFI, main drive is NTFS, boot drive partition is FAT32 First, the status of my hard drive seems okay-ish when I've checked the status of it ...
meowington's user avatar
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2 answers
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Two Windows Boot Manager entries in BIOS boot section

I have in dual boot Arch Linux and Windows 11. In my BIOS or when, at boot, I press key for boot selection, I have two Windows Boot Manager despite I have only one Windows installation. If I run in ...
Develobeer's user avatar
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What is the directory of the bcd file?

According to my research, I found that the directory of BCD for BIOS is System Reserved partition\boot\BCD, but in my system there is a similar directory [EFI\boot\] which does not contain the BCD ...
SEPEHR's user avatar
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WINLOAD.EFI CORRUPTED - Can't boot into OS normally, or via Safe mode and system restore won't work Windows 11

I can't boot into windows after a serious crash. Each time I boot, I get a critical process died or BSOD reporting different error codes around the BCD configuration file or winload.efi not being able ...
Michael Owen's user avatar
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Clone Windows (11) to new SSD and dual-boot from new and old

I have added a secondary SSD to my laptop and cloned the disk with Clonezilla. I call them SSD1 and SSD2. Now I have two identical disks with Windows 11. But I'm not able to boot from the new ...
Sam's user avatar
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The difficulties of editing a BCD Store on a cloned system drive

Problem: Booting from a cloned NVME drive / EFI System Partition still boots into the old OS system drive. I want it to boot into the new drive's OS and get it assigned as C. Context: I've rolled this ...
choddo's user avatar
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Can you view the BCD store and determine if the system is using the MBR or GPT?

Can you view the BCD store and determine if the system is using the MBR or GPT partitioning system?
SourHealer's user avatar
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How to set default BCD store location on UEFI system

I moved a Windows installation from one disk to another, using gparted. I manually created a new EFI partition using the bcdboot command. The system boots fine, however, advanced startup options are ...
Derkades's user avatar
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Bitlocker is not asking for password after altering bcd

I'm using Windows Server so I needed to disable Hyper-V for using VMWare Workstation. I altered bcd to set "hypervisorlaunchtype off" and now Bitlocker is not asking for a password. I also ...
user2775944's user avatar
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bcdedit.exe command giving strange error

Until yesterday i could use the command bcdedit /set testsigning on, so that i could start kernel mode drivers that are not signed, and then bcdedit /set testsigning off before shutting down, and i ...
User9387425's user avatar
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How to restore MBR of Windows (10) if I have a clone of the disk? (restore the MBR only)

All the search results explain how to attempt to fix a broken boot record without a backup. I have a backup. I have a clone of the whole physical disk (not just the partition). Due to reasons, I don't ...
Spectraljump's user avatar
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1 answer
134 views

Win10 Update Failed - Maybe tied to boot record?

Oh what a rat hole I've been following... This started with me trying to update Win10. I have tried to install "Feature update to Windows 10, version 21H2," but I kept getting a Windows ...
PauleyB's user avatar
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bcdedit - The process cannot access the file because it is being used by another process

This is a strange one, but whenever I bcdedit /export and then try to load it with bcdedit /store, system seems to swallow up the file, and you can't unlock it or close the handle on process explorer. ...
Lewis Kelsey's user avatar
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After removing dual boot, Windows 10 didn't boot. It shows me only a black screen and cursor after Windows logo. How do I fix it?

I had Windows 11 as bootable next to Windows 10 but when I removed the 11's partition and rebuilt BCD and MBR for 10's partition, It didn't boot. It shows me only a black screen and cursor after ...
Mohammed Mehdi TBER's user avatar
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How to disable driver signature enforcement mode if bcdedit /set TESTSIGNING ON fails?

I have been trying to set up some experimental driver, but I have typed quite several times: bcdedit /set loadoptions DDISABLE_INTEGRITY_CHECKS bcdedit /set TESTSIGNING ON Now I have an error saying: ...
Ivan P.'s user avatar
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Windows Bootmanager on two NVMe drives

I have two nvme slots on my board, in one of which I have run Win 10 Pro for the past couple of years. Now I upgraded to a bigger nvme Drive and put that in the same slot, moving the old one to the ...
Phil's user avatar
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Boot sector gets corrupted after every power outage

One of my Windows 10 computer's boot sector gets corrupted and unable to start whenever a power outage happens. Then I need to use a Windows 10 installation USB stick to fix it. I know it can happen ...
Zeynel Abidin Öztürk's user avatar
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My windows installation is not identified in bootrec /fixboot

I need to explain what exactly happened and what solutions I've tried First of all my windows 10 build 1909 was working just fine and was fully updated. But windows update just constantly reminded me ...
A. choofe's user avatar
1 vote
1 answer
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Windows 10 BCD missing

I've seen countless forum posts on how to rectify this problem, but I keep encountering random issues when doing so. I'm currently using a USB stick with the windows installation media to try to see ...
00Unit's user avatar
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In BCD, what do the elements "displaymessage" and "displaymessageoverride" do?

As the question says. I can't find documentation covering the purpose of displaymessage and displaymessageoverride. It looks like BCD entries can have up to 3 names - the description which is what ...
Stilez's user avatar
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3 votes
1 answer
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Windows 10 Update to 2004 failure - Error: 0x80004005 - 0x60016

I've been trying for the last week or so to get Windows 10 to update to 2004. I've tried all of the common solutions (sfc /scannow, DISM restore, media creation tool etc). After looking at the log ...
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bootrec /rebuildbcd finds "0" Windows installations

I have been running through several problems in the last days with my partitions and boot. I had dual-boot with Windows alongside Ubuntu, but I needed to remake everything again. This is the problem ...
edualvarado's user avatar
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1 answer
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Error: "boot configuration data setting 0x25000020 has changed for the following boot application \windows\system32\winload.efi"

Yesterday I got a suspicious message when starting uTorrent, it said "The install of 'some temporary file.tmp' failed (signer certificate mismatch)". The file was an exe file with .tmp ...
user626528's user avatar
1 vote
0 answers
308 views

Resolving dual boot problems

I cannot successfully boot Windows through GRUB (BSOD), and cannot booth Linux through the Windows bootloader. My primary goal is to boot both Linux and Windows using a single bootloader, preferably ...
Misamoto's user avatar
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1 vote
0 answers
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Windows BCD error after installing Linux distro

I installed a Linux distro alongside Windows, however for some reason the GRUB menu didn't appear and not set up properly so I repartitioned the Linux drive in Windows and used EasyBCD to try and fix ...
Winhelpm0n's user avatar
1 vote
0 answers
34 views

Cloned windows will not boot

Windows startup repair is not effective bootrec /scanos finds 1 installation bootrec /fixmbr returns success status bootrec /fixboot says access denied bootrec /rebuildbcd finds 1 installation If I ...
YoussefAly97's user avatar
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2 answers
678 views

Windows/Linux Bootdisk ISO

I am currently producing a bootdisk (similar to Medicat) that will boot live/installer linux and windows PE/install. I have managed to get bootmgr to load on the ISO but it says boot/BCD is missing. ...
DarkestSoul1992's user avatar
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Windows partitions have the same c: on disk

I have 2 windows 7 installed on two C: E partitions: BCD menu is: Windows7 1 Windows7 2 when I choose in any of the 2, I enter my pc, they have the same partition C: and show the other partition ...
molo32's user avatar
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Unable to install Windows 10 on Surface Book 2?

I'm trying to install Windows 10 on a Surface Book 2, but Windows keeps giving the error "Windows could not update the computer's boot configuration. Installation cannot proceed." I have tried ...
notorious's user avatar
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Windows Won't Boot with "hypervisorlaunchetype auto"

I have the EXACT same problem as Hypervisor BCD Boot Problem but it has not been answered. I have enabled AMD-V in bios, I have checked msinfo for any problems with Hyper-V, reinstalled Hyper-V ...
Psaidiwd's user avatar
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1 answer
517 views

Cant boot into Win7 anymore - RebuildBCD wont work - Startup repair wont recognize windows drive

When I try booting into my windows 7, there is a black screen saying that \Boot\BCD is missing or corrupt. What I did was get a Windows 7 iso onto a USB and when I boot that, the "Load Drives" cant ...
Exiled7's user avatar
1 vote
1 answer
173 views

Boot into windows directly (not windows boot manager)/Editing the windows BCD from linux?

I accidentally deleted the windows 7 option from the windows boot manager using bcdedit, and now can't boot into it. Any help is appreciated
Niranjan Kumar's user avatar
13 votes
3 answers
80k views

How can I add a BCD Boot Entry for Linux in Windows Boot Manager in EFI?

I have a Windows 10 Laptop booting in EFI mode. I currently have Windows 10 and Linux Mint installed. I want to be able to boot into Linux mint from Windows Boot Manager. The thing is, I kind of ...
ZeroSkill's user avatar
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1 answer
862 views

Setting C drive as active disk

So I had 250GB SATA SSD (called Old disk from here onwards), which had C drive on it, it was MBR, set as active and bootable. Win10 was installed on it. Now I have bought a 500GB NVME SSD (called New ...
dotNET's user avatar
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4 votes
0 answers
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Cannot repair bcd because the windows installation cannot be found

I'm trying to rebuild my BCD but my windows7 installation cannot be found. So far, I have typed these commands from the Windows7 install DVD (which I booted in UEFI mode) : X:\sources>chkdsk /r c:...
SebMa's user avatar
  • 1,863
5 votes
1 answer
12k views

access denied with bootrec /fixboot

I got a new SSD for my windows 10 home desktop computer recently. I used macrium to clone the HDD -> SSD and changed bios to boot from SSD. But when I tried cleaning the HDD I somehow corrupted ...
Almenon's user avatar
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1 vote
0 answers
215 views

Applying an image file using ImageX script gives boot configuration data store could not be opened error with new PC

I am applying windows image files, wim files, using Microsoft ImageX. This used to work fine but on a new version of what should be the same PC it now fails. The script is like this: DISKPART /s ...
user619818's user avatar
1 vote
1 answer
922 views

Windows 7: boot to Windows recovery environment without the original install CD?

I installed a new disk to my system that dual boots windows 10 and CentOS, I wanted to add the original disk that boots windows 7 to grub, Grub detected an error, I unplug the other disk and attempt ...
jason dancks's user avatar
0 votes
1 answer
3k views

Missing UEFI Boot option entry

Configuration HP Omen 15 1 original HDD 1Tb with windows 10 1 M2 SSD 500Gb with Windows 10 Pro (I initially cloned HDD to SSD) See diskpart disk/vol - my main system is in Volume 4 (drive E:) on ...
Syffys's user avatar
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0 answers
131 views

I messed with easyBCD an can't find an answer elsewhere

I am on a Dell Inspiron 5567. I first installed ubuntu to try to use linux but then I wanted to delete it and install debian instead. But the usb boot never worked for debian (I don't know if I did ...
Faune's user avatar
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11 votes
1 answer
18k views

Deleted bcd and now can’t boot windows

My computer has been having problems restarting ever since I added hypervisor to my bcd so I tried to delete it but ended up deleting the entire bcd. I have tried rebuilding the bcd with bootrec /...
Jacques Amsel's user avatar
4 votes
2 answers
3k views

How does the Windows Boot Manager locate the BCD?

I am trying to understand the Windows boot process. I got as far as the EFI boot manager loading the Windows Boot Manager. But then it must access the BCD in order to proceed further with loading the ...
Sergei Tachenov's user avatar
1 vote
0 answers
224 views

bcd file ignored but partition is active

I cannot boot windows 10 after the latest update. The update took ages, then I got stuck at boot on a screen called "windows rollback" on which I tried to restore to a previous version without success....
Arnaud Potier's user avatar
0 votes
1 answer
2k views

Replace Windows bootmgr file [duplicate]

I had a problem with booting windows 10 because I've changed the bootmgr path using : bcdedit /set {bootmgr} newpath after rebooting it said that the boot sector is corrupted. Using Linux I can enter ...
Th3Wolf's user avatar
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4 votes
4 answers
11k views

bcdedit.exe refuses to open system store

Looks like my BCD is somehow broken but I can't figure out what is wrong. The system boots just fine but it prevents windows from installing updates: MoSetupPlatform: Opening BCD store... ...
Poma's user avatar
  • 1,816
1 vote
1 answer
8k views

Removing and recreating EFI partition

I've wanted dualboot Win 10 and CentOS, but TL;DR I ended up with non-booting notebook. bootrec /scanOs can't find Windows installation (it is still there though). Auto repair doesn't work, neither ...
Kryštof Šádek's user avatar
8 votes
2 answers
58k views

Where is the BCD store physically located?

There are several tools to edit the BCD store, like bcdedit and Visual BCD Editor. They are editing the so-called "BCD Store". Where is it located physically? In filesystem (where)? On physical ...
Dims's user avatar
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1 answer
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Cannot import bcd.temp when trying to rebuild corrupt BCD on Windows 2012 server 64bit

I have a Windows 2012 server which died on me a week ago. There is a full description of what's gone wrong here. It seemed I'd finally found a solution here. I have moved to USB2.0 to eliminate that ...
shaneoh's user avatar
  • 101
0 votes
1 answer
205 views

Booting 2 Windows partitions on Single HDD; One via UEFI vs One via CSM BIOS - Possible?

Booting 2 Windows partitions on Single HDD; One via UEFI vs One via CSM BIOS - Possible? I'd like to be able to copy/ clone a Win 8.1 BIOS-MBR booting partition from a Hard drive 1 to the HDD 2 of a ...
Alex S's user avatar
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