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4 The next step depends on the state of the TPM: If the TPM Initialization Wizard detects a BIOS that doesn t meet Vista s TPM requirements, the wizard will not continue If the TPM is turned off, the wizard will show the Turn On The TPM Security Hardware page At this point, you ll have to follow the instructions for turning on the TPM This will involve shutting down the computer and following BIOS screen prompts When the computer restarts, Vista will prompt you to turn on the TPM If the TPM is turned on, you ll see a Create The TPM Owner Password page

The next phase of TPM initialization is setting ownership Setting ownership involves assigning a password so that only the authorized TPM owner can manage the TPM NOTE The TPM password is also required if you choose to deactivate the TPM

To establish the ownership of TPM: 1 Using administrator credentials, log on locally to the computer 2 Start the Trusted Platform Module Management console, as described in the previous section

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3 Under Actions, click Initialize TPM to start the TPM Initialization Wizard On the Welcome page, click Next 4 On the Create The TPM Owner Password page, select Automatically Create The Password (Recommended), and then click Next 5 On the Save Your TPM Owner Password page, click Save and then select a location to save the password The best practice is to save the TPM ownership password to removable media, like a Universal Serial Bus (USB) flash drive 6 Click Save The password file is saved as computer_nametpm 7 Click Print if you want to print a hard copy of your password NOTE Obviously, you don t want this printout taped to the wall next to your computer 8 Click Initialize 9 When initialization is finished, click Close

Since TPM is a reasonably new hardware feature, new computers might have TPM turned on by default If you elect not to use TPM, it s a good idea to turn it off Also, if you want to reconfigure or recycle a computer, you should turn off TPM To turn off the TPM: 1 Using administrator credentials, log on locally to the computer 2 Start the Trusted Platform Module Management console, as described in the previous section 3 Under Actions, click Turn TPM Off 4 In the Turn Off The TPM Security Hardware dialog box, select one of the following methods for entering your password and turning off the TPM: If you have your TPM owner password on removable media, insert the media and click I Have A Backup File With The TPM Owner Password In the Select Backup File With The TPM Owner Password dialog box, click Browse and then use the Open dialog box to locate the tpm file saved on your removable media Click Open and then click Turn TPM Off If you don t have the removable media with your owner password, click I Want To Type The TPM Owner Password In the Type Your TPM Owner Password dialog box, enter your password and then click Turn TPM Off If you don t know your TPM owner password, click I Don t Have The TPM Owner Password, and then follow the on-screen instructions Since you are logged on locally, you ll be able to turn off TPM

Turning off isn t the final thing you can do to deactivate TPM That just stops it from running Clearing the TPM cancels the TPM ownership and completes TPM shutdown To clear the TPM: 1 Using administrator credentials, log on locally to the computer 2 Start the Trusted Platform Module Management console 3 Under Actions, click Clear TPM 4 The Clear The TPM Security Hardware dialog box appears, and you are asked for a method for entering your password and clearing the TPM: If you have your TPM owner password on removable media, insert the media and click I Have A Backup File With The TPM Owner Password In the Select Backup File With The TPM Owner Password dialog box, click Browse and then use the Open dialog box to locate the tpm file saved on your removable media Click Open and then click Turn TPM Off If you don t have the removable media with your owner password, click I Want To Type The TPM Owner Password In the Type Your TPM Owner Password dialog box, enter your password and then click Turn TPM Off If you don t know your TPM owner password, click I Don t Have The TPM Owner Password, and then follow the on-screen instructions Since you are logged on locally, you ll be able to turn off TPM