How to Reset the BIOS in an Extensa 5620

by Marie Cartwright

The Basic Input/Output System--shortened to BIOS--on your computer is the firmware interface for your motherboard. It is responsible for identifying all hardware on your system during the boot process. If you need to reset the BIOS settings to their original factory defaults, you can use the BIOS menu. The Extensa 5620 uses the Phoenix TrustedCore BIOS, which is easy to navigate.


Reboot your computer. Watch carefully for the first setup message that appears on the screen during the boot process. At the bottom of the screen, you will see a brief message that reads "Press [key] to enter setup." Press the key specified quickly to enter BIOS. If you do not press the key quickly enough, Windows will boot normally. If this happens, simply reboot and try again.


Use the arrow keys to navigate to the "Exit" tab. Press "Enter."


Select "Load Setup Defaults" from the list in the left column. Press "Enter." Press the F10 key to save and exit. Your computer will now reboot with the BIOS set to the factory defaults.


  • check Resetting the BIOS will not affect any saved files on your system. You do not need to backup your files before you begin.

About the Author

Marie Cartwright began writing in 2010. Her work has appeared on various websites. Having held office jobs in copywriting and editing, Cartwright now works from her home in Northern California. She also maintains an events website geared toward the science and technology community.