Windows Boot Manager is not on the same disk as the Windows OS

Question

Windows Boot Manager is not on the same disk as the Windows OS

Catalin 116

Hello, Forum! I find myself in a weird situation, so I currently have 2 disks: Disk1 where windows is installed and a Disk2 where Linux is installed. For some reason Windows Boot Manager is on Disk2 with Linux, I've seen it in the Boot Menu.
Problem: I want to erase Disk2 but I don't want to reinstall windows... I already tried disconnecting Disk2 to see if it boots into windows but it only enters in BIOS...
Question: how do I copy, move or create a new boot file on Disk1 and delete the old one?

Ibrahim Ud Din Khan 1 Reputation point

2022-02-18T13:27:48.233+00:00

I am in same situation, only thing I know is that,

From BIOS, select one drive which has OS in it in BOOT Sequence and Disable all other drive, just enable one drive.
Docs 15,761 Reputation points

2022-02-18T13:33:05.257+00:00

This is an old thread.

If you need help please create a new thread.

In the new thread indicate any one or more of these:
a) Do you have a bootable Windows 10 iso
b) Do you need to save important files
c) Are files backed up
d) Are there backup images
e) Do you need to create a new boot partition
f) Have you tested the disk drive

Accepted answer

6 additional answers

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Ibrahim Ud Din Khan 1 Reputation point

2022-02-18T13:27:48.233+00:00

I am in same situation, only thing I know is that,

From BIOS, select one drive which has OS in it in BOOT Sequence and Disable all other drive, just enable one drive.
Docs 15,761 Reputation points

2022-02-18T13:33:05.257+00:00

This is an old thread.

If you need help please create a new thread.

In the new thread indicate any one or more of these:
a) Do you have a bootable Windows 10 iso
b) Do you need to save important files
c) Are files backed up
d) Are there backup images
e) Do you need to create a new boot partition
f) Have you tested the disk drive

Answer 1

Please perform the following steps:

Open administrative command prompt and type or copy and paste:

sfc /scannow
dism /online /cleanup-image /restorehealth
sfc /scannow

When these have completed > right click on the top bar or title bar of the administrative command prompt box > left click on edit then select all > right click on the top bar again > left click on edit then copy > paste into the thread or post a share link using one drive, drop box, or google drive

Open administrative command prompt and type or copy and paste:

diskpart
lis dis
lis vol
sel dis 2
det dis
lis par
sel par2
det par
shrink desired=100
create partition efi size=100
format fs=fat32 label="ESP"
assign letter=W
exit

bcdboot C:\windows /s W: /f all

Remove disk 0 and 1 or detach cables.
Reboot > report results

Reinstall or reattach disk 0 and 1 then set Samsung SSD 970 EVO 500GB as the first boot device.

Windows is on disk 2.
The above steps create a new EFI or ESP partition on the Windows drive.
This should allow you to boot disk 2 without disk 0 and 1.
This is a NVMe drive.

Post a new disk management.

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Answer 2

Sam of Simple Samples 5,546

Can you (in your BIOS) change the drive that the system boots from? Hopefully you can get it to go directly to Disk1.

Catalin 116 Reputation points

2021-08-31T06:10:12.297+00:00

that doesn't help me... like I said, in the Boot Menu, Disk1 doesn't even register as a boot entry...

does anyone know any command line tools for windows boot files?

Answer 3

Catalin 116

no one can help me?

Answer 4

Please perform the following steps:

Open administrative command prompt and type or copy and paste: (all at one time)

bcdedit /enum all
bcdedit | find "osdevice"
diskpart
lis dis
lis vol
sel dis 0
det dis
lis par
sel par 1
det par
sel par 2
det par
sel par 3
det par
sel par 4
det par
sel par 5
det par
sel par 6
det par
sel dis 1
det dis
lis par
sel par 1
det par
sel par 2
det par
sel par 3
det par
sel par 4
det par
sel par 5
det par
sel par 6
det par
sel dis 2
det dis
lis par
sel par 1
det par
sel par 2
det par
sel par 3
det par
sel par 4
det par

When these have completed > right click on the top bar or title bar of the administrative command prompt box > left click on edit then select all > right click on the top bar again > left click on edit then copy > paste into the thread or post a share link using one drive, drop box, or google drive

Open disk management > widen each the Volume and Status columns > make sure that no characters are cut off > view the disk 0 and disk 1 rows and widen the image so that no characters are cut off > launch the snipping tool > post an image into this thread > if there are problems posting images then use share links (one drive, drop box, or google drive)

Download and install Minitool Partition Wizard free version > post and image or share link into this thread
https://www.partitionwizard.com/free-partition-manager.html

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.
.
.
.
Please remember to vote and to mark the replies as answers if they help.

On the bottom of each post there is:

Propose as answer = answered the question

On the left side of each post: Vote = a helpful post
.
.
.
.
.

Answer 5

Catalin 116

@Docs
https://ipfs.io/ipfs/Qmb5qod8n3oYPyBPikCtFppfwvQKPdZ1qiL7QnMPTWwTTY
https://ipfs.io/ipfs/QmVkiarxhb5Q9tGSqLnvHUfZMDNdCfo6orogrZ7zoDJyFt
https://paste.ee/p/JaImC

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Windows Boot Manager is not on the same disk as the Windows OS

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