Note down this key. Acer Aspire 5538 5538G Windows 7 Drivers Key in the password from the previous step to unlock the HDD as shown. To clear the User or Supervisor passwords, open the RAM door and use a metal instrument to short the U72 jumper as shown below. From a DOS prompt, execute clnpwd. Press 1 or 2 to clean the desired password shown on the screen. The onscreen message determines whether the function is successful or not. To[…]