Acer Aspire V7-581 Service Manual page 82

10. In DOS mode, input unlockHD XXXXXXXX (Where XXXXXXXX is the backdoor key;
example here is 71055478). The exe will generate an backdoor password (example
here is 64933478).
Figure 2-31. HDD Backdoor Key Window
11. Power on the system with the locked HDD.
F2
12. Press during boot to enter BIOS Setup Menu.
13. Under Security, select Set HDD Password and input the backdoor password
(example here is 64933478) to clear the HDD password.
Figure 2-32. HDD Clear
14. The HDD password is cleared.
2-22 System Utilities