Acer 505 series - Manual (Page 98)

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3. Click in the New Password textbox and type in up to seven alphanumeric
characters (A-Z, a-z, 0-9) which you want to be your Power-On Password.
4. Click in the Confirm Password textbox and retype the password.
5. Click on OK to accept the setting.
Note: To change a password, follow the same steps used to set a password.
To remove a password, follow the same steps used to set a password but
leave both fields blank.
Setting the Setup Password
To set the Setup Password, follow these steps:
1. Click on the Change Setup Password button to display the following dialog
box:
2. Click on the Enable Setup Password checkbox.
3. Click in the New Password textbox and type in up to seven alphanumeric
characters (A-Z, a-z, 0-9) which you want to be your Setup Password.
4. Click in the Confirm Password textbox and retype the password.
5. Click on OK to accept the setting.
Note: To change a password, follow the same steps used to set a password.
To remove a password, follow the same steps used to set a password but
leave both fields blank.