Link - Acer Aspire 5749 Bios

For a complete overview of Aspire 5749 hardware maintenance and advanced troubleshooting, Acer's official 2354-page service manual is the best resource.

It is recommended to back up crucial data, although BIOS updates rarely affect user files. acer aspire 5749 bios link

Look for "BIOS Version/Date". This tells you if you actually need the update. 2. Download and Extract the BIOS For a complete overview of Aspire 5749 hardware

The Acer Aspire 5749 utilizes an InsydeH2O BIOS. The download package includes a convenient Windows utility. This tells you if you actually need the update

Remember: A working laptop with old BIOS is better than an expensive brick with new BIOS. Proceed with caution.

Enter your or Serial Number (found on the sticker on the bottom of the laptop). Alternatively, search by model: Aspire 5749 . Expand the BIOS/Firmware section to see available versions.

If you are installing the BIOS from DOS because Windows is not booting or you are having other issues, you can use the DOS Flash Utility. The Aspire 5749 service manual outlines this process: