Before the operating system is loaded, your Compaq Evo N1020V loads a program called the BIOS, which verifies that any installed hardware is working. The BIOS can be manually changed in order to modify system settings such as the memory speed and boot information. If your system is behaving incorrectly after changing a BIOS setting, it's simple to reset the options to their original settings by using the built-in restore feature.
Turn off the Compaq Evo N1020V and wait five seconds. Turn on the computer and wait for the Compaq logo to load on the screen during the boot sequence.
Press the "F10" key to load the Compaq's BIOS menu. Press the "F5" key. Highlight the "Yes" option and press "Enter" to reset the main BIOS menu options.
Tap the right arrow key to navigate to the "Advanced" tab. Tap "F5" and choose "OK" again to reset the advanced settings.
Press the right arrow key to navigate to the "Power" tab, tap "F5" and choose "OK." Hit the right arrow key to navigate to the "Boot" tab, tap "F5" and choose "OK" to finish resetting the BIOS settings to their factory defaults.
Tap the "F10" key to save the reset options and reboot the operating system.
All of the BIOS options can also be automatically reset at the same time. Press the right arrow key four times to navigate to the "Exit" tab. Highlight the "Load Setup Defaults" option and press "Enter." Choose "Yes" and tap "Enter." Scroll over to "Exit Saving Changes" and press "Enter" again.
Do not change BIOS options unless you are sure of the changes you need to make. The BIOS controls the Compaq's boot order, so if you change the wrong setting the computer won't properly load its operating system.