[SOLVED] New windows installation in NVME SSD stops working when I remove my old Windows drive.

Flawnex

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Oct 9, 2016
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Hello!

I recently bought a new NVME SSD, and installed Windows 10 on it with my USB installation drive. Everything seemed to work just fine and I moved some files I wanted to keep over from my old SSD, which has Windows 10 installed on it as well. I played some games from the new SSD and have some project files on it as well.

However, I want to remove the old drive to use in another computer, but when I do, my computer boots straight into BIOS, and does not recognize the new SSDs Windows installation. The computer does recognize the drive, and when I inserted the USB installation drive, I could have chosen to wipe and install Windows on the NVME SSD. I plugged the old SSD back in, and once again the new SSDs Windows installation works again.

So, how do I get the NVME installation working without losing the files I have already got on the new drive?

Thanks in advance for any help.
 
Here's the screenshot
Execute following from elevated command prompt. Regular command prompt will give error on last step.
If you get any errors, then stop immediately.
diskpart
list disk
select disk 2
(select disk, where windows is installed)
list partition
select partition X
(select 465GB partition, X=1 or X=2)
shrink desired=500
create partition efi size=500
format fs=fat32 quick
assign letter=H
exit
bcdboot C:\windows /s H:
(take a screenshot of command output and show it, if something doesn't work)

Now shutdown.
Disconnect all other drives (USB drives too).
Verify boot priority in BIOS - Windows boot manages should be first in boot order.
Boot into windows.

 
Reactions: Flawnex
Backup your data and do a fresh installation, this time only with the NVME installed and all other drives detached.
Windows has this nasty habit of unloading to a separate drive if it detects one before installation.
 
Last edited:
So, how do I get the NVME installation working without losing the files I have already got on the new drive?
Normally - you install windows with only single drive connected.

If you didn't do that, then bootloader doesn't get created on the drive, you install windows on.
This is because there's already existing bootloader on one of your old drives.

Now - you have to create bootloader partition on new drive manually.
Instructions to do this are not overly complicated. A bit tricky though.

Show screenshot from Disk Management (upload to imgur.com and post link).
 

Flawnex

Reputable
Oct 9, 2016
16
0
4,520
1
Normally - you install windows with only single drive connected.

If you didn't do that, then bootloader doesn't get created on the drive, you install windows on.
This is because there's already existing bootloader on one of your old drives.

Now - you have to create bootloader partition on new drive manually.
Instructions to do this are not overly complicated. A bit tricky though.

Show screenshot from Disk Management (upload to imgur.com and post link).
This seems like the best response so far.

Here's the screenshot
Forgot to add that F drive is old SSD, C is new SSD and G and E are storage drives.
View: https://imgur.com/a/eEm1lrY
 
Here's the screenshot
Execute following from elevated command prompt. Regular command prompt will give error on last step.
If you get any errors, then stop immediately.
diskpart
list disk
select disk 2
(select disk, where windows is installed)
list partition
select partition X
(select 465GB partition, X=1 or X=2)
shrink desired=500
create partition efi size=500
format fs=fat32 quick
assign letter=H
exit
bcdboot C:\windows /s H:
(take a screenshot of command output and show it, if something doesn't work)

Now shutdown.
Disconnect all other drives (USB drives too).
Verify boot priority in BIOS - Windows boot manages should be first in boot order.
Boot into windows.

 
Reactions: Flawnex

Flawnex

Reputable
Oct 9, 2016
16
0
4,520
1
Execute following from elevated command prompt. Regular command prompt will give error on last step.
If you get any errors, then stop immediately.
diskpart
list disk
select disk 2
(select disk, where windows is installed)
list partition
select partition X
(select 465GB partition, X=1 or X=2)
shrink desired=500
create partition efi size=500
format fs=fat32 quick
assign letter=H
exit
bcdboot C:\windows /s H:
(take a screenshot of command output and show it, if something doesn't work)

Now shutdown.
Disconnect all other drives (USB drives too).
Verify boot priority in BIOS - Windows boot manages should be first in boot order.
Boot into windows.

Thank you!

Followed the steps, and everything worked flawlessly.
 

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