Acer Aspire S3-391 Acer Aspire S3-391 Notebook Service Guide - Page 52

Remove HDD/BIOS Password Utilities 0 This section explains how to remove the HDD and BIOS passwords. Removing the HDD Password 0 NOTE: NOTE: If the incorrect HDD password is entered three times in succession, an error is generated. (Figure 2-11) Password Error Status HDD password error code Figure 2-11. Password Error Status To reset the HDD password: 1. Open the computer in a DOS environment. 2. Type the following command: A\> unlockhd XXXXXXXX Figure 2-12. Unlock Key Code NOTE: NOTE: XXXXXXXX = HDD Password Error Code 3. Press Enter to generate a new password. Figure 2-13. Password Encoding 4. Write down the generated master password. 5. Reboot the computer. 6. In the HDD password prompt, type the master password generated in step 3, then press Enter. 2-14 System Utilities