What is firmware?
Firmware, also known as ‘‘software for hardware,’’ is program code embedded in hardware devices that enables them and their features to function properly. Firmware is regularly updated to fix common problems, add or expand features or increase a device's compatibility with new technologies. - ibm.com/think/topics/firmware
Why upgrade firmware?
It is important to upgrade firmware from time-to-time to enhance security of the device.
What do I need to do?
Nothing. It's all automatic. The firmware will install as part of the normal monthly Windows update process and will finish installation after a restart. Your device will automatically update if it is required. After restarting your computer, you may see screens like the examples below depending on the manufacturer and model of your computer.
Please do not turn off your computer during the firmware update process. The update process may take up to 10 minutes to complete. Once the update is finished the computer will restart, and normal operation will resume.
Dell image:
Lenovo images:
