Dell OptiPlex 9020 All In One (Mid 2013) - Manual (Page 55)

To enter the System Setup, press immediately after a power-on or reboot.
1. In the System BIOS or System Setup screen, select System Security and press .
The System Security screen is displayed.
2. In the System Security screen, verify that Password Status is Unlocked.
3. Select System Password, alter or delete the existing system password and press or .
4. Select Setup Password, alter or delete the existing setup password and press or .
NOTE: If you change the System and/or Setup password, re-enter the new password when promoted. If you
delete the System and/or Setup password, confirm the deletion when promoted.
5. Press and a message prompts you to save the changes.
6. Press to save the changes and exit from the System Setup.
The computer reboots.
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