BCD removed by accident - No bootable device

[Charlie275]

@Tk_srq

Hi @Tk_srq,

Thank you so much! Most of what I typed went ok. but when I typed bcdboot g:\windows /s S: there was an error.

I will tell you what I did between your sencentes below, what the result was and I have some questions, ok? 🙂

diskpartselect disk 1 OK

select partition 2 OK

assign letter=g OK

list volume [Check to make sure volume 3 now has letter G] OK

list partition 1 Here I typed select partition 1 - OK

delete partition OK

create partition efi size=549 OK

format quick fs=fat32 Why fat32 and not NTFS? Before formating the type was NTFS. The system drive/partition was/is also an NTFS type. I typed what you wrote: format quick fs=fat32. OK

assign letter=s This partition had letter E before. Why assign letter s? I typed what you wrote:  assign letter=s. OK

exit OK

bcdboot g:\windows /s S: After I type this there appears an error: Failure when initializing library system volume

exit

After my former partition mistake the C drive letter was changed into No letter.  Is there maybe a reference in the copied (boot files) to a c-drive or is that a dumb assumption?

Thanks again for helping me so much!

Greeting, Charlie

[tk_srq]

An efi partition is also called as a system partition. It "must be formatted using the FAT32 file format."

Source: UEFI/GPT-based hard drive partitions | Microsoft Learn

You deleted E:\Nieuw Volume (partition1 disk1), so letter E no longer exists. You used this space to create an efi partition. You can assign any unused letter to the efi partition. It doesn't have to be 's'. I just used it because it is used as an example in the Microsoft article below which I referenced a lot.

BCDBoot Command-Line Options | Microsoft Learn

Hopefully, I answered your questions. I reread your posts and noticed your notebook's model number ended with #ABH which is Netherlands. Bcdboot requires a Locale parameter if your locale (language-country code) is other than the default en-us (US English). See the aforementioned MS article for more info about a locale. 

According to this website, your locale is nl-nl, so you need to add /l nl-nl to the bcdboot command.

Run diskpart, list volume and list partition. If you still see volume G (Windows partition)/partition 2 disk 1 and volume S (efi partition)/partition1 disk 1, command lines you need to run will be like this:

diskpart

list volume

select disk 1

list partition

exit

bcdboot g:\windows /l nl-nl /s S:

exit

[Charlie275]

@Tk_srq

Hi @Tk_srq,

 Thank you so much for your information and help!

This is what I did/happened.

A - I typed: bcdboot g:\windows /l nl-nl /s S:

The message that appeared was: Boot files  successfully created

B - I started my computer.

There were several black screens with the following messages:

Screen 1

EaseUs Partition Master Boor Operation

The program is being initialized! Please wait...

1 operation of 1

Moving and resizing Partition

Hard disk: 1

File system: NTFS

Drive letter: C:

Start sector: 1161216 ==>1126400

Partition size: 243631 MB ==> 243648

Cluster size: 4 KB

Total: 25% Current Operation: 25% Moving data 14%

Screen 2

EaseUs Partition Master Boor Operation

The batch operations are processed completely!

Wait a second please. Rebooting system...

Screen 3

To skip disk checking, press any key within 7 seconds

Screen 4

Fixing (D:) Stage 1: 13% (39592 of 295168); Total: 4%; ETA: 0:00:39

Screen 5

Fixing (D:) Stage 2: 75% (296147 of 390228); Total: 76%; ETA: 0:00:6

Screen 6

Fixing (D:) Stage 3: 44% (2152 of 4825); Total: 97%; ETA: 0:00:00

Screen 7

To skip disk checking, press any key within 8 seconds

Screen 8

Scanning and repairing drive (E:): 100 complete

Screen 9

Only a black screen.

After starting up the computer again:

Only a black screen.

I wanted to take a look how the structure and drive letters looked like.

C - To check what is on Disk 1 I did the following.

Diskpart select disk 1

Disk 1 is now selected

select partition 2

Partition 2 is now selected

list volume

And this is what he has come up with. The volume letters G and S were gone.

Volume  ###  Ltr  Label           Fs         Type           Size        Status         Info

Volume  0       C      DATA            NTFS   Partition    917 GB  Healthy             

Volume 1        D      RECOVERY NTFS   Partition    13 GB     Healthy              

Volume 2                                      FAT32 Partition    549 GB  Healthy      Hidden

Volume 3                                      NTFS   Partition    237 GB  Healthy     Hidden

Volume 4        E                            FAT32  Removable 29 GB Healthy     

Volume 5        D                           NTFS    Partition        13 GB Healthy     Hidden

D - I assigned the letters G and S again like you taught me.

Letter G was assigned. Letter S not (message like letter S cannot be assigned).

E - I tried to assign letter P then.

Letter P was assigned.

F - After trying to startup the computer again the screen showed me a black screen only. Nothing further happened.

G - When I listed de volume again drive letters G and P were gone.

Greetings and thanks, Charlie

[tk_srq]

It appears that the bcdboot command successfully created the boot manager in the efi partition. When the system restarted, however, the pending disk/partition work kicked in before Windows was loaded. From your description the work involved moving/resizing volume C (Windows) partition in disk 1, but it ended up stripping the drive letter from the Windows partition, leaving it hidden.

My suggestion is to run a diagnostic test for the boot drive and to reinstall Windows using HP Cloud Recovery Tool, if the drive passes the tests.

Turn on the notebook and immediately tap the F2 key and run all three hard drive tests (Smart check and short and long DST tests). If the test generates a failure code, you need to replace the drive.

The cloud recovery tool creates a bootable usb drive that installs Windows, drivers and HP software. You need a 32 GB usb drive. See this link for how to use the recovery tool.

HP Consumer PCs - Using the HP Cloud Recovery Tool in Windows 11 and 10 | undefined