BcdBoot still fails in Version 1.10.35

[excelsi]

When generating a Windows Server 2025 Datacenter VHDX with Version 1.10.35 on a Windows 11 25H2 System i still get an error at BcdBoot:

`VERBOSE: [Convert-Wim2VHD] : Overwrite partitions inside [E:\VM\Qemu\img-chv\W2k25.vhdx] with content of
[D:\ISO\SRV\install-dc.wim]
VERBOSE: [Convert-Wim2VHD] : InitializeVHDPartitionParam
VERBOSE:
Name Value

---

Dynamic True

Path E:\VM\Qemu\img-chv\W2k25.vhdx

DiskLayout UEFI

force True

Size 42949672960

VERBOSE: [Convert-Wim2VHD] : SetVHDPartitionParam
VERBOSE:
Name Value

---

SourcePath D:\ISO\SRV\install-dc.wim

Path E:\VM\Qemu\img-chv\W2k25.vhdx

FeatureSourceIndex 1

Unattend .\unattend.xml

Driver {.\virtio-amd64}

Index 1

force True

Confirm False

VERBOSE: [Convert-Wim2VHD] : ParametersToPass
VERBOSE:
Name Value

---

Verbose True

VERBOSE: [Initialize-VHDPartition] Create partition structure for Bootable vhd(x) on [E:\VM\Qemu\img-chv\W2k25.vhdx]
VERBOSE: [Initialize-VHDPartition] [W2k25.vhdx] : Creating
VERBOSE: [Initialize-VHDPartition] [W2k25.vhdx] : Params for New-DpVhd
VERBOSE:
Name Value

---

Path E:\VM\Qemu\img-chv\W2k25.vhdx

Dynamic True

Force True

Size 42949672960

VERBOSE: [Initialize-VHDPartition] [W2k25.vhdx] : Params for [WIM2VHD.VirtualHardDisk]::CreateSparseDisk()
VERBOSE:
Name Value

---

Path E:\VM\Qemu\img-chv\W2k25.vhdx

Dynamic True

Force True

Size 42949672960

VERBOSE: [Initialize-VHDPartition] [W2k25.vhdx] : Mounting disk image
VERBOSE: [Initialize-DiskPartition] Create [UEFI] partition structure on Disk [2]
VERBOSE: [Initialize-DiskPartition] [2] : Clearing disk
VERBOSE: [Initialize-DiskPartition] [2] : Initializing disk [2] as [GPT]
VERBOSE: [Initialize-DiskPartition] [2] : Clearing disk to start all over
VERBOSE: [Initialize-DiskPartition] [2] : System : Creating partition of [] bytes
VERBOSE: [Initialize-DiskPartition] [2] : System : Formatting [FAT32]
VERBOSE: [Initialize-DiskPartition] [2] : System : Setting system partition as ESP
VERBOSE: [Initialize-DiskPartition] [2] : MSR : Creating partition of [134217728] bytes
VERBOSE: [Initialize-DiskPartition] [2] : Primary : Creating partition of [41591767040] bytes
VERBOSE:
Name Value

---

DiskNumber 2

GptType {ebd0a0a2-b9e5-4433-87c0-68b6b72699c7}

Size 41591767040

VERBOSE: [Initialize-DiskPartition] [2] : Primary : Formatting volume [NTFS]
VERBOSE: [Initialize-DiskPartition] [2] : Recovery Tools : Creating partition using remaining free space
VERBOSE: [Initialize-DiskPartition] [2] : Recovery Tools : Formatting volume NTFS
VERBOSE: [Initialize-VHDPartition] [W2k25.vhdx] : Dismounting disk image
VERBOSE: [Set-VHDPartition] : Overwrite partitions inside [E:\VM\Qemu\img-chv\W2k25.vhdx] with content of
[D:\ISO\SRV\install-dc.wim]
VERBOSE: [Set-VHDPartition] [W2k25.vhdx] : Mounting disk image [E:\VM\Qemu\img-chv\W2k25.vhdx]
VERBOSE: [Set-VHDPartition] [W2k25.vhdx] : Mounted as diskNumber [2]
VERBOSE: [Set-DiskPartition] : Overwrite partitions inside [E:\VM\Qemu\img-chv\W2k25.vhdx] with content of
[D:\ISO\SRV\install-dc.wim]
VERBOSE: [Set-DiskPartition] [2] : Partition Table
VERBOSE:
PartitionNumber DriveLetter Size Type

---

          1           G   272629760 System
          2              134217728 Reserved
          3           H 41591767040 Basic
          4           I   948961280 Recovery

VERBOSE: [Set-DiskPartition] [2] Windows Partition [3] : Applying image from [D:\ISO\SRV\install-dc.wim] to [H:] using
Index [1]
VERBOSE: [Set-DiskPartition] [2] : Adding Windows Drivers to the Image
Set-DiskPartition : [Set-DiskPartition] [2] : Error setting partition content
At C:\Program Files\WindowsPowerShell\Modules\WindowsImageTools\1.10.35\Private\Set-VHDPartition.ps1:167 char:11

•       Set-DiskPartition @ParametersToPass @SetDiskParam
  

•       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

  • CategoryInfo : NotSpecified: (:) [Write-Error], WriteErrorException
  • FullyQualifiedErrorId : Microsoft.PowerShell.Commands.WriteErrorException,Set-DiskPartition

VERBOSE: [Set-DiskPartition] [2] : Removing Drive letters
VERBOSE: [Set-DiskPartition] [2] : Finished
Set-VHDPartition : [Set-VHDPartition] [W2k25.vhdx] : Error setting partition content
At C:\Program Files\WindowsPowerShell\Modules\WindowsImageTools\1.10.35\Public\Convert-Wim2VHD.ps1:337 char:9

•     Set-VHDPartition @SetVHDPartitionParam @ParametersToPass
  

•     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

  • CategoryInfo : NotSpecified: (:) [Write-Error], WriteErrorException
  • FullyQualifiedErrorId : Microsoft.PowerShell.Commands.WriteErrorException,Set-VHDPartition

VERBOSE: [Set-VHDPartition] [W2k25.vhdx] : Dismounting
VERBOSE: [Set-VHDPartition] [W2k25.vhdx] : Finished
Missing an argument for parameter 'Process'. Specify a parameter of type 'System.Management.Automation.ScriptBlock[]'
and try again. at
At C:\Program Files\WindowsPowerShell\Modules\WindowsImageTools\1.10.35\Public\Convert-Wim2VHD.ps1:341 char:9

•     throw "$($_.Exception.Message) at $($_.Exception.InvocationIn ...
  

•     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

  • CategoryInfo : OperationStopped: (Missing an argu... try again. at :String) [], RuntimeException
  • FullyQualifiedErrorId : Missing an argument for parameter 'Process'. Specify a parameter of type 'System.Managem
    ent.Automation.ScriptBlock[]' and try again. at

PS D:\ISO\SRV> Convert-Wim2VHD -Path .\W2k25.vhdx -Dynamic -DiskLayout UEFI -Unattend .\unattend.xml -SourcePath .\install-dc.wim -Verbose
VERBOSE: [Convert-Wim2VHD] : Overwrite partitions inside [D:\ISO\SRV\W2k25.vhdx] with content of
[D:\ISO\SRV\install-dc.wim]
VERBOSE: [Convert-Wim2VHD] : InitializeVHDPartitionParam
VERBOSE:
Name Value

---

Dynamic True

Path D:\ISO\SRV\W2k25.vhdx

DiskLayout UEFI

force True

Size 42949672960

VERBOSE: [Convert-Wim2VHD] : SetVHDPartitionParam
VERBOSE:
Name Value

---

SourcePath D:\ISO\SRV\install-dc.wim

Path D:\ISO\SRV\W2k25.vhdx

FeatureSourceIndex 1

Unattend .\unattend.xml

Index 1

force True

Confirm False

VERBOSE: [Convert-Wim2VHD] : ParametersToPass
VERBOSE:
Name Value

---

Verbose True

VERBOSE: [Initialize-VHDPartition] Create partition structure for Bootable vhd(x) on [D:\ISO\SRV\W2k25.vhdx]
VERBOSE: [Initialize-VHDPartition] [W2k25.vhdx] : Creating
VERBOSE: [Initialize-VHDPartition] [W2k25.vhdx] : Params for New-DpVhd
VERBOSE:
Name Value

---

Path D:\ISO\SRV\W2k25.vhdx

Dynamic True

Force True

Size 42949672960

VERBOSE: [Initialize-VHDPartition] [W2k25.vhdx] : Params for [WIM2VHD.VirtualHardDisk]::CreateSparseDisk()
VERBOSE:
Name Value

---

Path D:\ISO\SRV\W2k25.vhdx

Dynamic True

Force True

Size 42949672960

VERBOSE: [Initialize-VHDPartition] [W2k25.vhdx] : Mounting disk image
VERBOSE: [Initialize-DiskPartition] Create [UEFI] partition structure on Disk [2]
VERBOSE: [Initialize-DiskPartition] [2] : Clearing disk
VERBOSE: [Initialize-DiskPartition] [2] : Initializing disk [2] as [GPT]
VERBOSE: [Initialize-DiskPartition] [2] : Clearing disk to start all over
VERBOSE: [Initialize-DiskPartition] [2] : System : Creating partition of [] bytes
VERBOSE: [Initialize-DiskPartition] [2] : System : Formatting [FAT32]
VERBOSE: [Initialize-DiskPartition] [2] : System : Setting system partition as ESP
VERBOSE: [Initialize-DiskPartition] [2] : MSR : Creating partition of [134217728] bytes
VERBOSE: [Initialize-DiskPartition] [2] : Primary : Creating partition of [41591767040] bytes
VERBOSE:
Name Value

---

DiskNumber 2

GptType {ebd0a0a2-b9e5-4433-87c0-68b6b72699c7}

Size 41591767040

VERBOSE: [Initialize-DiskPartition] [2] : Primary : Formatting volume [NTFS]
VERBOSE: [Initialize-DiskPartition] [2] : Recovery Tools : Creating partition using remaining free space
VERBOSE: [Initialize-DiskPartition] [2] : Recovery Tools : Formatting volume NTFS
VERBOSE: [Initialize-VHDPartition] [W2k25.vhdx] : Dismounting disk image
VERBOSE: [Set-VHDPartition] : Overwrite partitions inside [D:\ISO\SRV\W2k25.vhdx] with content of
[D:\ISO\SRV\install-dc.wim]
VERBOSE: [Set-VHDPartition] [W2k25.vhdx] : Mounting disk image [D:\ISO\SRV\W2k25.vhdx]
VERBOSE: [Set-VHDPartition] [W2k25.vhdx] : Mounted as diskNumber [2]
VERBOSE: [Set-DiskPartition] : Overwrite partitions inside [D:\ISO\SRV\W2k25.vhdx] with content of
[D:\ISO\SRV\install-dc.wim]
VERBOSE: [Set-DiskPartition] [2] : Partition Table
VERBOSE:
PartitionNumber DriveLetter Size Type

---

          1           G   272629760 System
          2              134217728 Reserved
          3           H 41591767040 Basic
          4           I   948961280 Recovery

VERBOSE: [Set-DiskPartition] [2] Windows Partition [3] : Applying image from [D:\ISO\SRV\install-dc.wim] to [H:] using
Index [1]
VERBOSE: [Set-DiskPartition] [2] Windows Partition [3] : Adding Unattend.xml (.\unattend.xml)
VERBOSE: [Set-DiskPartition] [2] : Disk Layout [UEFI]
VERBOSE: [Set-DiskPartition] [2] System Partition [1] : Running [H:\Windows\System32\bcdBoot.exe] -> H:\Windows /s G:
/v /f UEFI
VERBOSE: [RunExecutable] : Running [H:\Windows\System32\bcdBoot.exe] [H:\Windows /s G: /v /f UEFI]
VERBOSE:
Name Value

---

PassThru True

FilePath H:\Windows\System32\bcdBoot.exe

ArgumentList {H:\Windows, /s G:, /v, /f UEFI}

RedirectStandardError C:\Users\MK\AppData\Local\Temp\bcdBoot.exe-StandardError.txt

NoNewWindow True

Wait True

RedirectStandardOutput C:\Users\MK\AppData\Local\Temp\bcdBoot.exe-StandardOutput.txt

VERBOSE: [RunExecutable] : Return code was [-1058471934]
Set-DiskPartition : [Set-DiskPartition] [2] : Error setting partition content
At C:\Program Files\WindowsPowerShell\Modules\WindowsImageTools\1.10.35\Private\Set-VHDPartition.ps1:167 char:11

•       Set-DiskPartition @ParametersToPass @SetDiskParam
  

•       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

  • CategoryInfo : NotSpecified: (:) [Write-Error], WriteErrorException
  • FullyQualifiedErrorId : Microsoft.PowerShell.Commands.WriteErrorException,Set-DiskPartition

VERBOSE: [Set-DiskPartition] [2] : Removing Drive letters
VERBOSE: [Set-DiskPartition] [2] : Finished
Set-VHDPartition : [Set-VHDPartition] [W2k25.vhdx] : Error setting partition content
At C:\Program Files\WindowsPowerShell\Modules\WindowsImageTools\1.10.35\Public\Convert-Wim2VHD.ps1:337 char:9

•     Set-VHDPartition @SetVHDPartitionParam @ParametersToPass
  

•     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

  • CategoryInfo : NotSpecified: (:) [Write-Error], WriteErrorException
  • FullyQualifiedErrorId : Microsoft.PowerShell.Commands.WriteErrorException,Set-VHDPartition

VERBOSE: [Set-VHDPartition] [W2k25.vhdx] : Dismounting
VERBOSE: [Set-VHDPartition] [W2k25.vhdx] : Finished
H:\Windows\System32\bcdBoot.exe failed with code -1058471934! at
At C:\Program Files\WindowsPowerShell\Modules\WindowsImageTools\1.10.35\Public\Convert-Wim2VHD.ps1:341 char:9

•     throw "$($_.Exception.Message) at $($_.Exception.InvocationIn ...
  

•     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

  • CategoryInfo : OperationStopped: (H:\Windows\Syst...1058471934! at :String) [], RuntimeException
  • FullyQualifiedErrorId : H:\Windows\System32\bcdBoot.exe failed with code -1058471934! at`

Command used:
PS D:\ISO\SRV> Convert-Wim2VHD -Path E:\VM\Qemu\img-chv\W2k25.vhdx -Dynamic -DiskLayout UEFI -Unattend .\unattend.xml -SourcePath .\install-dc.wim -Verbose

The workarround from #17 (comment) did not help here too.

Would be nice if this can be fixed, thanks!