To update the BIOS on your Acer Aspire ES1-512 for free, you should only use official files from the Acer Support Website

1. Do Not Use Third-Party Tools: Never use third-party BIOS update tools found on random websites. They often bundle malware or provide incorrect firmware versions. Stick to the official Acer website.
2. Power Source is Vital: Ensure your laptop is plugged into the AC adapter. If the battery dies during the update process, the motherboard can be permanently damaged. Ideally, your battery should also have at least a 10-30% charge.
3. Match Your Model: The Acer Aspire ES1-512 has various sub-models (e.g., ES1-512-C3CP, ES1-512-P1SM). Ensure you download the BIOS specific to your exact model variant.
4. BitLocker Users: If you have BitLocker encryption enabled, suspend it before updating. A BIOS update can trigger a BitLocker lockout, preventing you from booting into Windows.

• Check the sticker on the bottom of the laptop.
• Run wmic baseboard get product in Command Prompt.

• 🔋 Plug in AC power – do not run on battery alone.
• 💾 Close all applications – ensure no interruptions.
• 🛡️ Do not power off during the update (usually 2–5 minutes).
• ✅ Verify current BIOS version (press F2 during boot) – update only if newer exists.