Dell OptiPlex 755 User's Guide - Page 277

special programs. Using smart cards can improve computer security by combining something a user has (the smart card) with something only the user should know (a PIN) to provide more secure userauthentication than passwords alone. The fingerprint reader is a device that you can use to help keep your Dell™ computer secure. The reader is a strip sensor located on a peripheral device for your computer. When you slide your finger over the reader, it uses your unique fingerprint to authenticate your user identity. Password Protection NOTICE: Although passwords provide security for the data on your computer, they are not foolproof. If your data requires more security, it is your responsibility to obtain and use additional forms of protection, such as data encryption programs. System Password NOTICE: If you leave your computer running and unattended without having a system password assigned, or if you leave your computer unlocked so that someone can disable the password by changing a jumper setting, anyone can access the data stored on your hard drive. Option Settings You cannot change or enter a new system password if either of the following two options is displayed: • Set - A system password is assigned. • Disabled - The system password is disabled by a jumper setting on the system board. You can only assign a system password when the following option is displayed: • Not Set - No system password is assigned and the password jumper on the system board is in the enabled position (the default setting). Assigning a System Password To escape from the field without assigning a system password, press or the key combination to move to another field, or press at any time before you complete step 5. 1 Enter system setup (see "Entering System Setup" on page 280) and verify that Password Status is set to Unlocked. 2 Highlight System Password, and then press the left- or right-arrow key. The option heading changes to Enter Password, followed by an empty 32-character field in square brackets. 3 Type your new system password. You can use up to 32 characters. To erase a character when entering your password, press or the left-arrow key. The password is not case sensitive. Advanced Features 277