Acer M5-481TG Service Manual page 77

10. Press F12.
11. Repeat steps 3 to 6.
A Boot Manager menu appears on screen as shown.
12. Select the USB device that includes the DOS unlock HDD password tool.
Figure 2-27. Boot Manager Menu
13. In WinPE or DOS mode, execute UnlockHD.exe (or UnlockHD_x64.exe) to create a
password unlock code. Use the format
<UnlockHD [key code]> with the code noted in the Figure 2-24.
Example: UnlockHD 76776356
The command generates a password which can be used for unlocking the HDD.
Example: Password 69654998
Figure 2-28. Unlock Password
14. Type in <exit> to quit WinPE or DOS.
In WinPE mode:
The machine will restart automatically.
In DOS mode:
15. Power off the machine.
16. Power on the machine.
NOTE: NOTE:
If the HDD password is incorrectly entered three times, an error is generated.
(Figure 2-29)
Acer M5-481TG System Utilities
Boot Option Menu
1. HDD: WDC WD5000LPVT-22G33T0
2. ATAPI CDROM: HL-DT-ST DVDRAM GU61N
3. Network Boot: BRCM MBA Slot 0400 v15.0.11
4. USB HDD: TDKMediaTrans-It Drive
↑ and ↓ to change option, ENTER to select an optio
C:\>unlockhd 76776356
Password: 69654998
C:\>_
Boot Manager
2-22