Acer Aspire E1-531 Service Manual page 64

Execute UnlockHD.exe to generate an unlock password.
5.
Use the following command: UnlockHD [key code] with the code noted in step 3,
Take note of the generated unlock password.
6.
On the original device, enter the unlock password in the Enter Unlock Password dialog
7.
box.
2-23
C:\UnlockHD 54986933
Password: 41684315
C:\
Figure 2:27. Execute UnlockHD.exe
Enter Unlock Password (Key: 54986933)
********
Figure 2:28. Enter Unlock Password
Figure 2:26.
System Utilities