2.When the ThinkPad logo comes up, immediately press F1 to enter BIOS Setup Utility.For models supporting the Passphrase function, press F1 while HDP icon is appearing on the screen; then enter the master HDP. For the other models, enter the master HDP.
Note: To check whether the ThinkPad Notebook you are servicing supports the Passphrase function, enter the BIOS Setup Utility and go to Security ➙ Password. If Using Passphrase item is displayed in the menu, this function is available on the ThinkPad Notebook.
3.Select Security, using the cursor directional keys to move down the menu.
4.Select Password.
5.Select
6.Select Master HDP.
7.Type the current master HDP in the Enter Current Password field. then leave the Enter New Password field blank, and press Enter twice.
8.Press F10.
9.Select Yes in the Setup Configuration window. Both user HDP and master HDP will have been removed.
