A BIOS or UEFI update is a firmware operation, not a normal Windows update. It can fix a documented hardware problem, improve compatibility, or add support for hardware, but installing the wrong firmware or interrupting the update can leave a computer unable to boot.
Identify the Exact PC or Motherboard
- Open System Information by searching for
msinfo32. - Record the system or motherboard manufacturer and exact model.
- Record the current BIOS/UEFI version and date.
- Use the manufacturer’s support page for that exact model.
Check Whether an Update Is Actually Needed
Read the manufacturer’s release notes. A newer firmware version is not automatically an improvement for every system. Update when it addresses a problem, adds required hardware support, or is otherwise recommended for your configuration.
Prepare for the Update
- Back up important files.
- Save the BitLocker or device-encryption recovery key in a secure location.
- Connect a laptop to reliable AC power.
- Disconnect unnecessary peripherals if the manufacturer’s instructions recommend it.
- Read the exact flashing instructions before starting.
Install the Manufacturer’s Firmware
- Download the BIOS/UEFI package only from the PC or motherboard manufacturer’s official support site.
- Use the installation method specified for your model, such as an OEM Windows utility or UEFI firmware-update tool.
- Confirm the model and firmware version before approving the update.
- Do not turn off the PC, close the updater, or remove power while firmware is being written.
After the Update
Allow the system to restart completely. Check the BIOS/UEFI version afterward and verify Windows, storage, networking, and other important hardware still work. Firmware changes can also reset settings such as boot mode, virtualization, or custom fan profiles.
If BitLocker Requests Recovery
A firmware or boot-configuration change can trigger BitLocker recovery. Keep the recovery key available before starting. Do not assume a recovery prompt means the firmware update failed.
Summary
Update BIOS/UEFI only when there is a clear reason, using the exact manufacturer’s firmware and procedure. Back up data, secure the recovery key, maintain stable power, and never interrupt a firmware flash.