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The acer aspire uses an updated version of the bios called the unified extensible firmware interface.you can change the uefi settings using the advanced options of the update and recovery function in windows.. Increase the aspire screen's brightness by holding "fn" and then pressing the right arrow key to drain the battery faster. you can improve battery life by closing unnecessary programs and. Aspire e 14 series covers: aspire e5-471, e5-471g, e5-431, e5-421, e5-421g, e5-411 open the acer portal from the start screen to sign up for an acer id or sign in if you already have an acer id. there are three great reasons for you to get an acer id: • remotely access your pc from your other devices with our battery pack 50 battery.