change boot drive


rayzor

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hi all i duel boot on windows 11 my problem is i want to boot from c: cause i boot from d:

c: is my main drive and i want to some time change d: drive if i take d; out it wont boot tried every thing

any ideas please
mbr from D: to C:
 

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SmokeMe

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I use EasyBCD to make my dual boot changes. They have a free version.
Do you have a boot menu (after post) to chose which OS/partition you want to boot from?
 

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rayzor

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yes i have used easybcd but it wont swap the mbr so if i change d rive i will be left with main drive not booting
i have tried taking d drive out of computer no boot menu
 

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SIW2

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If you are using mbr partition style :

You would need to mark one of the partitions on the disk containing C active . Easiest to mark C partition active. That can be done in disk management.
Or it can be done from an administrator cmd prompt type:
diskpart
(then press enter)
sel vol c
(then press enter)
act
(then press enter)
exi
(then press enter)

Then you create the boot files on C using this command. From an administrator cmd prompt type:
bcdboot c:\windows /s c:
(then press enter)

Now that disk should be bootable on its own.

After that, if you find it is still booting from the other disk, that is because the other disk is first in bios boot order.
 

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rayzor

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thanks tried it could not get past diskpart failed ill keep trying
thanks
 

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zbook

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For Windows 11 supported upgrades the partition needs to be GPT.

If you boot using a MBR drive there may be problems if booting UEFI without CSM.

So consider MBR2GPT.

Post images of disk management and mini tool partition wizard.
(for disk management make sure that these columns are widened so that no characters are cutoff: Volume and Status)
Also widen the rows for the drives so that no characters are cutoff: disk 0, disk 1 etc.

Post an image of msconfig boot tab.

These bat files currently require a Ten Forums logon:
Run:

Tuneup_plus_log.bat ─ Click here to go to the BSOD batch repository to download and run this batch file.

DiskParInfo.bat - Click here to go to the BSOD batch repository to download and run this batch file.
 

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AddRAM

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That`s because your boot files are on D.
 

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rayzor

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Yes thats why i want them on c:/ so i can remove d:/and fit larger drive
 

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rayzor

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For Windows 11 supported upgrades the partition needs to be GPT.

If you boot using a MBR drive there may be problems if booting UEFI without CSM.

So consider MBR2GPT.

Post images of disk management and mini tool partition wizard.
(for disk management make sure that these columns are widened so that no characters are cutoff: Volume and Status)
Also widen the rows for the drives so that no characters are cutoff: disk 0, disk 1 etc.

Post an image of msconfig boot tab.

These bat files currently require a Ten Forums logon:
Run:

Tuneup_plus_log.bat ─ Click here to go to the BSOD batch repository to download and run this batch file.

DiskParInfo.bat - Click here to go to the BSOD batch repository to download and run this batch file.
 

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jimbo45

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Hi there
In your bcdboot command c:\windows /s S: /f UEFI where s is the boot partition on the gpt drive
In diskpart you need to mount the "system" partition (the EFI one -- in diskpart select disk xxx , list partition select partition xxx assign letter=S then exits and run the bcdboot command
the system EFI partition should be the 100M (or however big you made it).

Cheers
jimbo
 

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zbook

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What had happened on each drive that there are multiple system and or recovery partitions?

If possible, logon to Ten Forums to run the bat scripts in post #6.



Open administrative command prompt and type or copy and paste:


Code:
sfc /scannow
dism /online /cleanup-image /restorehealth
chkdsk /scan

Post images or share links displaying the commands with results.



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

Code:
bcdedit /enum all
bcdedit | find "osdevice"
reagentc /info

Post images or share links displaying the commands with results.



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

Code:
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 par 7
det par
sel par 8
det par
sel par 9
det par
sel par 10
det par
sel par 11
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 par 7
det par
sel par 8
det par
sel par 9
det par
sel par 10
det par
sel par 11
det par


Post images or share links displaying the commands with results.


Run V2:


In the left lower corner search type: msconfig
When system configuration opens click the boot tab > post an image into this thread



Please also run:
 
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Winuser

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If all attempts fail, you can do like I had to do when I had my boot partition move to drive D. I made a system image with Macrium Reflect of the C drive. Then I made a Macrium rescue disk to boot from. Then i made a bootable Windows install usb drive. I then shutdown the computer and disconnect drive D. Then I did a clean install of Windows on the C drive. After I was sure everything was working, I booted the computer with the Macrium rescue disk and restore the image of the C partition over top the new C partition (just the C partition). I tried every suggestion I found, and nothing worked.
 

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rayzor

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If all attempts fail, you can do like I had to do when I had my boot partition move to drive D. I made a system image with Macrium Reflect of the C drive. Then I made a Macrium rescue disk to boot from. Then i made a bootable Windows install usb drive. I then shutdown the computer and disconnect drive D. Then I did a clean install of Windows on the C drive. After I was sure everything was working, I booted the computer with the Macrium rescue disk and restore the image of the C partition over top the new C partition (just the C partition). I tried every suggestion I found, and nothing worked.

Like you i have tried all options yesterday i managed to lose boot no drives worked i did not want to loose maindrive C: only thing i could do was remove C; and reinstall on D;/ when it booted i used easybcd to get both drives back up so like you said ill buy a new ssd and tyr again

thanks to all for all tips cheers
 

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zbook

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Please run the above script posted by Matthew Wai.
 

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NavyLCDR

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Like you i have tried all options yesterday i managed to lose boot no drives worked i did not want to loose maindrive C: only thing i could do was remove C; and reinstall on D;/ when it booted i used easybcd to get both drives back up so like you said ill buy a new ssd and tyr again

thanks to all for all tips cheers
@rayzor,

You need to give the EFI System Partition highlighted below a drive letter, such as S:. Then once it has a drive letter, you need to run the command given earlier:
bcdboot C:\Windows /s S: /f UEFI
 

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Winuser

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Like you i have tried all options yesterday i managed to lose boot no drives worked i did not want to loose maindrive C: only thing i could do was remove C; and reinstall on D;/ when it booted i used easybcd to get both drives back up so like you said ill buy a new ssd and tyr again

thanks to all for all tips cheers
By doing it the way I did I kept my original C partition by restoring it over the new C partition and didn't lose anything. I just used the clean install to create all the partitions that Windows needed. Like I said if all else fails its worth a try.
 

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NavyLCDR

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By doing it the way I did I kept my original C partition by restoring it over the new C partition and didn't lose anything. I just used the clean install to create all the partitions that Windows needed. Like I said if all else fails its worth a try.
It is a method, also, that is almost guaranteed to work, and gets rid of all the extra recovery partitions!
 

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Winuser

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It is a method, also, that is almost guaranteed to work, and gets rid of all the extra recovery partitions!
A little more involved but it does work. I only did it as a last resort.
 

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  • OS
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    PowerSpec B746
    CPU
    Intel Core i7-10700K
    Motherboard
    ASRock Z490 Phantom Gaming 4/ax
    Memory
    16GB (8GB PC4-19200 DDR4 SDRAM x2)
    Graphics Card(s)
    NVIDIA GeForce GTX 1050 TI
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    Realtek Audio
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    Samsung SAM0A87 Samsung SAM0D32
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    16 MB DDR 4-2666
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