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If you’re seeing an error message related to your disk when trying to update your BIOS, don’t worry—it’s usually because the message is actually referring to the EFI System Partition (ESP), not your main C: drive. The ESP is a small partition on your hard drive, usually around 100 MB, that stores important files for starting up your computer and managing BIOS updates.
Often, after updating your BIOS, an HP folder appears on the ESP. This folder contains tools like the BIOS flash utility, current BIOS files, and other related files. Over time, this folder can grow quite large, using up space in the ESP. When the space runs out, your BIOS update can fail because there’s not enough room to complete the process.
You have a couple of options to fix this:
First, you can try deleting some files within the HP folder on the EFI partition. Be careful to only delete the unnecessary BIOS files or folders, as removing important files could cause startup issues.
Another approach is to increase the size of the EFI partition. This process is more technical but can be done with specific software tools. You can find detailed tutorials on YouTube that guide you through enlarging the EFI partition safely.
If you’re looking for a simpler solution, creating a BIOS recovery USB drive might work well. This involves downloading the BIOS update files, placing them on a USB stick, and then booting your system from that USB to perform the update. This method bypasses the space issue on the EFI partition completely.
To do this, follow the instructions on HP’s support page by navigating to the section titled “3. Manually Recover the BIOS” and then selecting “Recover the BIOS Using a USB Recovery Drive.” The steps involve creating a bootable USB with the BIOS files and using a specific key combination (usually Windows + B keys plus the power button) to boot from it and run the update.
If you prefer to clear space by deleting files directly from the EFI partition, HP also provides guides on how to remove stored BIOS files and clean up the EFI\HP folder. Just make sure you understand which files are safe to delete to avoid causing problems with your system.
By following these methods, you can free up space and successfully update your BIOS without much hassle.


