HP dx5150 Technical Information download pdf (Page 39)

Service Reference Guide, dx5150 361685-001 3–13

Desktop Management

Changing a User or Supervisor Password

If the system is equipped with an embedded security device, refer to the HP ProtectTools

Embedded Security Guide, on the Documentation CD.

1. Turn on or restart the computer. If you are in Windows, click Start > Shut Down > Restart

the Computer.

2. When the Enter Password box appears, type the current User password, if a password is

required.

3. Press Enter.

4. Press and hold the F10 key until you enter Computer Setup. Press Enter to bypass the title

screen, if necessary.

✎

If you do not press the F10 key at the appropriate time, you must restart the computer and press

and hold the

F10 key again to access the utility.

If you are using a PS/2 keyboard, you may see a Keyboard Error message—disregard it.

5. When the Enter Password box appears to access Computer Setup, type the current

Supervisor password, if required.

6. Press Enter.

7. Select either Set Supervisor Password or Set User Password.

8. When the Enter Password box appears on the screen, type the new password and press

Enter.

9. Before exiting, on the File menu, select Save Changes and Exit.

✎

To delete a password instead of changing it, when the Enter Password box appears on the

screen, press Enter instead of entering the new password. This deletes the current password.

Clearing Passwords

If you forget the password, you cannot access the computer. Refer to the Troubleshooting Guide

on the Documentation CD for instructions on clearing passwords.

If the system is equipped with an embedded security device, refer to the HP ProtectTools

Embedded Security Guide, on the Documentation CD.

3.5.4 Master Boot Record Security

The Master Boot Record (MBR) contains information needed to successfully boot from a disk

and to access the data stored on the disk. Master Boot Record Security may prevent unintentional

or malicious changes to the MBR, such as those caused by some computer viruses or by the

incorrect use of certain disk utilities. It also allows you to recover the “last known good” MBR,

should the computer detect changes to the MBR when the system is restarted.

To enable MBR Security, complete the following steps:

1. Turn on or restart the computer. If you are in Windows, click Start > Shut Down > Restart.

2. As soon as the computer is turned on, press and hold the F10 key until you enter Computer

Setup. Press

Enter to bypass the title screen, if necessary.

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HP dx5150 Technical Information Page 39

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