Administrator Guide

Table Of Contents
NOTE: Ensure that the Write Filter is disabled while managing the services.
Using TPM and BitLocker
Trusted Platform Module (TPM)A TPM is a microchip that provides basic security-related functions, that primarily involve
encryption keys.
BitLocker Drive Encryption (BDE)A BDE is a full disk encryption feature that protects data by providing encryption for
entire volumes. By default, it uses the AES encryption algorithm in Cipher Block Chaining (CBC) mode with a 128-bit key. This
algorithm is combined with the Elephant diffuser for extra disk encryption-specific security.
Windows 10 IoT Enterprise does not support sysprep on a BitLocker encrypted device. Due to this limitation, you cannot encrypt
the device, perform a sysprep, and pull the image. To overcome this issue, you must add or modify the TPM script. The
device must not be encrypted before sysprep (pull). The device encryption is handled by the post push script that uses the
TPM_enable.ps1 script that is at C:\Windows\setup\tools\. The post push script must be included before enabling the
UWF and after sysprep scripts. The PIN used to encrypt the client must be passed to the script as an argument.
You can initialize TPM and enable BitLocker using any of the following methods:
Initialize TPM and enable BitLocker using the imaging script.
Initialize TPM and enable BitLocker manually.
Initialize TPM and enable BitLocker using the imaging script
Prerequisites
Enable alphanumeric pin support for TPM and BitLocker using the following steps:
1. Log in to the administrator account.
2. Disable Unified Write Filter.
The thin client restarts.
3. Log in to the administrator account again.
4. Open gpedit.msc using the run command menu.
5. Go to Local Group Policy > Computer Configuration > Administrative Templates > Windows Components >
BitLocker Drive Encryption > Operating System Drives > Allow enhanced PINs.
The Allow enhanced PINs for startup window is displayed.
6. Select the Enabled option.
7. Click Apply and then click OK.
8. Open gpupdate /force using the run command.
9. Restart the thin client to apply the group policies.
Steps
1. Log in to the administrator account.
2. Disable Unified Write Filter.
The thin client restarts.
3. Log in to the administrator account again.
4. Uncomment the following lines and update the pinminimum of six charactersfor TPM encryption:
If you are using Wyse Management Suite or USB Imaging toolGo to C:
\Windows\Setup\CustomSysprep\Modules\Post_CustomSysprep.psm1 and uncomment the following lines:
#cd C:\Windows\setup\Tools\TPM\
#.\TPM_enable.ps1 -pin TC#1234
If you are using System Center Configuration ManagerGo to C:
\Windows\Setup\ConfigMgrSysprep\Modules\Admin_ConfigMgrSysprep.psm1 and uncomment the
following lines:
#cd C:\Windows\setup\Tools\TPM\
#.\TPM_enable.ps1 -pin TC#1234
5. Change the password to an alphanumeric format.
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Administrative features