Before downloading anything, verify if you actually need an update. Press the button and type "System Information".
Once the update starts, do not turn off the computer or touch any keys until it finishes and reboots into Windows. Step-by-Step Update Guide How to Update the BIOS on an Acer Nitro update bios acer nitro 5 an51543 link
The keyword here is . Many third-party driver sites offer BIOS files, but they may include malware or corrupted ROMs. Always download directly from Acer’s support website. Before downloading anything, verify if you actually need
Do not proceed until you complete all of these: Step-by-Step Update Guide How to Update the BIOS
(found on the bottom sticker) for the most accurate results. Expand the "BIOS/Firmware" section and click for the version you need. Step 3: The Update Process How to Update the BIOS on an Acer Nitro