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HP Z4 G4 Maintenance And Service Manual Page 98

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h.
Select the Main menu, and then select Reset BIOS Security to factory default. Click Yes at the
warning message.
The computer will reboot.
i.
During the reboot, press esc.
NOTE:
j.
Select the Main menu, select Apply Factory Defaults and Exit, select Yes to save changes and exit,
and then select Shutdown.
k.
Reboot the system. If the system has a Trusted Platform Module (TPM) and/or fingerprint reader,
one or two prompts will appear—one to clear the TPM and the other to Reset Fingerprint Sensor;
press or tap
l.
Remove all power and system batteries for at least 24 hours.
2.
Complete one of the following:
Remove and retain the storage drive.
– or –
Clear the drive contents by using a third party utility designed to erase data from a solid-
state drive.
– or –
Clear the contents of the drive by using the following BIOS Setup Secure Erase command
option steps:
IMPORTANT:
a.
Turn on or restart the computer, and then press
message is displayed at the bottom of the screen.
b.
Select the Security menu and scroll down to the Utilities menu.
c.
Select Hard Drive Utilities.
d.
Under Utilities, select Secure Erase, select the hard drive storing the data you want to clear, and
then follow the on-screen instructions to continue.
90
Appendix B Statement of memory volatility
If the system has a BIOS administrator password, enter the password at the prompt.
F1
to accept or
F2
to reject.
If you clear data using Secure Erase, it cannot be recovered.
esc
while the "Press the ESC key for Startup Menu"

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