Final answer:
Clearing the BIOS system setup is primarily done to reset the computer to default settings, which can resolve hardware conflicts and boot issues. It is also used to remove forgotten BIOS passwords or prepare for a BIOS update. Always document existing settings before clearing the BIOS to ensure they can be restored if necessary.
Step-by-step explanation:
One reason to clear the BIOS system setup is to reset the system to its default settings. This can be helpful when troubleshooting issues that arise due to hardware conflicts, corrupted firmware, or incorrect settings that prevent the computer from booting properly. By clearing the BIOS, also known as resetting the CMOS, you remove custom configurations that could cause system instability, ensuring a fresh start.
Another benefit of clearing the BIOS setup is to remove passwords that have been set within the BIOS. If the BIOS password is forgotten, clearing the CMOS can restore access. Additionally, updating the BIOS to a new version may sometimes require a clear before installation to prevent compatibility issues with the existing settings.
Before clearing your BIOS, it's important to understand that doing so will wipe out any customized settings, such as boot priority and hardware configurations. It is advisable to note down these settings or take photographs of each BIOS page just in case you need to restore any specific configurations later.