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<body class='hmmessage'><div dir='ltr'><span dir="ltr">Hi Peter,
<div><br>

</div>
<div>I am running the <font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;">Create-DevboardKey.ps1 script on Win 8.1U1, here's a copy\paste of my latest Powershell session if it will help.</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

PS C:\mbm> .\Create-DevboardKey.ps1 -ImagePath Setup\sources\install.wim -Index 2</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

Number BusType Name                       Size</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

------ ------- ----                       ----</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

     0 SATA    Samsung SSD 840 EVO 500GB  465.8 GB</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

     5 USB     Corsair Voyager USB Device 7.5 GB</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

Please enter the number of the disk to install to:: 5</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

Applying USB hack to selected disk & restarting it</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

Confirm</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

Are you sure you want to perform this action?</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

This will erase all data on disk 5 "Corsair Voyager USB Device".</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [S] Suspend  [?] Help (default is "Y"): y</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

Disk Number: 5</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

PartitionNumber  DriveLetter Offset                                        Size Type</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

---------------  ----------- ------                                        ---- ----</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

2                            34603008                                    100 MB System</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

The type of the file system is RAW.</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

The new file system is FAT32.</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

WARNING, ALL DATA ON NON-REMOVABLE DISK</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

DRIVE F: WILL BE LOST!</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

Proceed with Format (Y/N)? QuickFormatting 100.0 MB</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

Initializing the File Allocation Table (FAT)...</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

Volume label (11 characters, ENTER for none)? Format complete.</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

      96.0 MB total disk space.</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

      96.0 MB are available.</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

        1,024 bytes in each allocation unit.</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

       98,303 allocation units available on disk.</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

           32 bits in each FAT entry.</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

Volume Serial Number is 0A70-8867</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

3                            139460608                                   256 MB Reserved</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

DriveLetter     :</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

DriveType       : Fixed</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

FileSystem      : NTFS</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

FileSystemLabel : System</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

HealthStatus    : Healthy</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

ObjectId        : \\?\Volume{3d5900a3-8f41-4c62-9f6d-3a9aa4dc7abb}\</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

Path            : \\?\Volume{3d5900a3-8f41-4c62-9f6d-3a9aa4dc7abb}\</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

Size            : 7610560512</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

SizeRemaining   : 7573315584</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

PSComputerName  :</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

Applying Windows Image</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

Deployment Image Servicing and Management tool</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

Version: 6.3.9600.17031</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

Error: 87</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

An error occurred while processing the command.</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

Ensure that the command-line arguments are valid. For more information, review the log file.</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

The DISM log file can be found at C:\Windows\Logs\DISM\dism.log</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

BFSVC Error: Failed to validate boot manager checksum (g:\Windows\boot\EFI\bootmgfw.efi)! Error code = 0xc1</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

Failure when attempting to copy boot files.</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

The boot configuration data store could not be opened.</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

The system cannot find the file specified.</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

ERROR: The system was unable to find the specified registry key or value.</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

ERROR: The parameter is incorrect.</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

New-Item : The registry key at the specified path does not exist.</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

At C:\mbm\Create-DevboardKey.ps1:195 char:48</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

+                 else                          {New-Item -Path $keyPath}</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

+                                                ~~~~~~~~~~~~~~~~~~~~~~~</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

    + CategoryInfo          : InvalidArgument: (HKEY_LOCAL_MACH...Control\UsbStor:String) [New-Item], ArgumentExceptio</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

   n</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

    + FullyQualifiedErrorId : System.ArgumentException,Microsoft.PowerShell.Commands.NewItemCommand</span></font><font color="#444444" size="2"><span style="font-size:15.27px;background-color:white;"><br>

</span></font></div>
<br>

<br>

I've noticed that the drive mapping changes during the process, not sure
 if that matters or not. A reg key was created at 
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\usbstor\1B1Cxxxx. This 
is the one I usually have to delete.<br>

<br>

I do have some Powershell coding experience but I haven't looked into the problem yet.<br>

<br>

A normal install from a USB drive created with the Windows 7 USB DVD 
download tool, or manually partitioned with diskpart with the files 
copied from the ISO doesn't work. The MAX doesn't recognize a valid boot
 partition nor will it map the drive in the EFI
(x64) shell. <br>

<br>

<br>

<div><font size="3"><span style="font-size:12pt;">Tim</span></font></div></span>                                    </div></body>
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