Can I update BIOS without a USB?

You don’t need a USB or flash drive to update BIOS. Simply download and extract the file and run it. In some cases like Lenovo, you don’t have to extract as it comes as zip file. Run as administrator while AC power is available and wait for it to complete the process.

Can you update BIOS without?

Without an updated BIOS, newer hardware may not be able to function correctly. You can upgrade your BIOS without having an operating system installed. You will, however, need access to another computer with an Internet connection. … You can upgrade your BIOS by floppy disk, CD or flash drive.