- 1). Navigate in your Web browser to the Downloads and Support Documents page at Acer's website (support.acer.com).
- 2). Click "Notebook," "Aspire" and "Aspire 5100" in the navigation menu. Click "Confirm."
- 3). Click the green "BIOS" tab.
- 4). Click the green button next to the BIOS download that displays the highest version number in the "Version" column. As of 2011, the most recent Acer Aspire 5100 BIOS is version 3.13. Save the file "BIOS_Acer_v3.13_.zip" to the desktop.
- 5). Right-click the file "BIOS_Acer_v3.13_.zip," and select "Extract" to unzip the archive.
- 6). Right-click the file "cw51313.zip," and select "Extract" to unzip the BIOS upgrade utility.
- 7). Double-click the file "flash32.exe" to update the BIOS of your Acer Aspire 5100.