Compaq dc7900 HP ProtectTools User Guide - Page 102
Embedded Security Windows software., Security Power-On
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Software Impacted- Short description Details Solution Security Power-On Authentication overlaps the BIOS Password during boot sequence. Power-On Authentication prompts the user to log on to the system using the TPM password, but, if the user presses F10 to access the BIOS, the user is granted Read rights access only. To be able to write to BIOS, the user must type the BIOS password instead of the TPM password at the Poweron Authentication window. The BIOS asks for both the old and new passwords through Computer Setup after the Owner password is changed. The BIOS asks for both the old and new passwords through Computer Setup after the Owner password is changed in Embedded Security Windows software. This is as designed. This is due to the inability of the BIOS to communicate with the TPM, after the operating system is up and running, and to verify the TPM pass phrase. 92 Chapter 11 Troubleshooting ENWW