Clearing Bios Passwords - Acer Aspire E1-521 Service Manual

Clearing BIOS Passwords

To clear the User or Supervisor password, perform the following:
In Windows OS, copy the file "CLNPWD.EXE" to the root directory of a DOS-bootable USB
1.
disk.
With the target machine on which passwords aer to be cleaned, boot into DOS with the USB
2.
disk, and execute CLNPWD.EXE.
Press 1 to clean the user password or 2 to clean the supervisor password.
3.
2-27
Figure 2:42. Copy CLNPWD.EXE file
C:\>CLNPWD.EXE
ACER Clean Password Utility V1.00
Press 1 or 2 to clean any password shown as below
1.User Password
2.Supervisor Password
Clean User Password Successfully!
Figure 2:43. Clean BIOS Password (1 of 3)
C:\>CLNPWD.EXE
ACER Clean Password Utility V1.00
Press 1 or 2 to clean any password shown as below
1.User Password
2.Supervisor Password
Clean User Password Successfully!
1
Clean User Password Successfully!
C:\>_
Figure 2:44. Clean BIOS Password (2 of 3)
System Utilities