See the specifications to find out about the configuration of your computer. TPMs are defined by Trusted Computing Group (TCG) and also called security chips. Using Your VAIO Computer > Using the TPM n 87 N Important Notice Notes on encrypting the operating system or program files Encrypting files used by your operating system or any software application, using the Encrypting File System (EFS) with the TPM, will disable you to launch or operate such software. To avoid such problems, observe the following before using the EFS: . Be sure to save data you want to encrypt to the following destinations: . The Encrypted Data folder created with the default settings in the user initialization process . A new encrypted folder created in the My Documents folder or the Documents folder on your account . The Personal Secure Drive . The Personal Secure Drive is a virtual drive that is created by using the Personal Secure Drive feature and automatically encrypts data that is saved to it. . Do not change the following settings on the View tab in the Folder Options window displayed by clicking Folder and search options from Organize in the menu of Windows Explorer. . Don't show hidden files, folders, or drives . Hide protected operating system files (Recommended) . Do not change the system attributes of the files, unless necessary. . Do not encrypt the Windows folder, the Program Files folder, and all files in each folder. . Do not encrypt the Users folder and all account folders in it. Using Your VAIO Computer > Using the TPM n 88 N Notes on encrypting key files or files on the Personal Secure Drive Encrypting files created in the following folders when your user account is initialized and the EFS is enabled will disable you to launch your TPM software and decrypt the encrypted data. With the default settings, the files in the folders below cannot be encrypted because they have system attributes. Do not change the system attributes of the files in the folders below. ! The following folders are hidden by default. . Folders containing key files . C:\ProgramData\Infineon . C:\Users\All Users\Infineon (C:\Users\All Users is a shortcut to C:\ProgramData.) . C:\Users\\AppData\Roaming\Infineon . Files on the Personal Secure Drive C:\Security Platform\Personal Secure Drive\System Data\xxx.FSF Using Your VAIO Computer > Using the TPM n 89 N Notes on encrypting backup files or other files Encrypting backup archive files or emergency recovery token files will disable you to recover your computer system for emergency, and encrypting password reset token files or secret files will disable you to reset the password. Do not encrypt the following files or folders: . The default path for files below or displayed by clicking Browse is My Documents (or Documents)\Security Platform or Security Platform in removal media. . Automatic backup archive file Default file name: SPSystemBackup.xml or SPSystemBackup_.xml . Storage folder for automatic backup archive files Folder name (Fixed): . SPSystemBackup (The folder is created as the subfolder for the SPSystemBackup.xml file.) . SPSystemBackup_ (The folder is created as the subfolder for SPSystemBackup_.xml file.) . Emergency recovery token file Default file name: SPEmRecToken.xml . Password reset token file Default file name: SPPwResetToken.xml . Token file for emergency recovery/password reset Default file name: SPToken_.xml . Password reset secret file Default file name: SPPwdResetSecret.xml or SPPwdResetSecret__..xml Using Your VAIO Computer > Using the TPM n 90 N . Key and certificate backup file Default file name: SpBackupArchive.xml . PSD backup file Default file name: -Personal Secure Drive.fsb . Owner password backup file Default file name: SpOwner_.tpm . Protocol file Default file name: SpProtocol__..txt Using Your VAIO Computer > Using the TPM n 91 N Configuring the TPM To use the embedded TPM, you need to: 1 Enable the TPM in the BIOS setup screen. 2 Install the Infineon TPM Professional Package. 3 Initialize and configure the TPM. To enable the TPM in the BIOS setup screen 1 Turn on your computer. 2 Press the F2 key when the VAIO logo appears. The BIOS setup screen appears. If the screen does not appear, restart the computer and press the F2 key several times when the VAIO logo appears. 3 Press the < or , key to select the Security tab, the M or m key to select Change TPM State, and then the Enter key. 4 Press the M or m key to select Enable and then the Enter key. 5 Press the < or , key to select Exit, select Exit Setup, and then press the Enter key. 6 After your system restarts, select Execute in the confirmation window and then press the Enter key. . You can also disable the TPM and clear the TPM configuration in the BIOS setup screen. ! Before enabling the TPM, be sure to s...