Improvements to NitroSense and overall thermals. Pre-Update Checklist (Important)
Sometimes, newer BIOS versions (like some 2026 revisions) can cause issues. If you experience instability after an update, you may need to wait for a subsequent hotfix. update bios acer nitro 5 an51543 link
After reboot, go to msinfo32 again and confirm the BIOS version matches the new one. Improvements to NitroSense and overall thermals
The utility will automatically restart your laptop. Before booting into Windows, a black screen with a progress bar will appear reading "InsydeH2O - Secure Flash" or "Updating System Firmware" . 5. Finalize the Boot After reboot, go to msinfo32 again and confirm
To find the official BIOS files for your specific model, navigate to the Acer Drivers and Manuals
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If you experience other issues, such as BIOS settings not saving correctly or secure boot options behaving unexpectedly after an update, these are often related to the update process itself. In many cases, a BIOS update is not the solution, and you should seek other troubleshooting methods or consider contacting Acer support.