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Sometimes it can be useful to downgrade the BIOS of a device. We’ve found that by downgrading the BIOS on laptops we can change the unlock code used to bypass BIOS lock codes. Most of the schools we work with receive donated equipment so being able to unlock the BIOS becomes imperative, especially during the imaging process. We’ve outlined the steps below to both downgrade the BIOS on an older Dell laptop, as well as include instructions as to unlocking a previously secured BIOS.

Step 1 – Create a Bootable Flash Drive This process details creating a bootable USB flash drive that includes Hiren’s BootCD. If you’re unfamiliar with Hiren’s it is a great compilation of many tech tools that can be useful for diagnosing and fixing computers. Best of all it’s free, like much of the software we recommend. You’ll need the latest version of the software so you can download that here: Once you have a copy of the.iso for Hiren’s you’ll need to follow and download a few more tools before you can boot from a flash device. Ibm Informix Odbc Driver Download Windows 7 64 Bit more. As those steps have been carefully documented already, please follow this link to complete the process of creating a bootable Hiren’s flash drive: Step 2 – Locate and load a compatible BIOS firmware As we’re downgrading the BIOS version on a laptop it can sometimes be challenging to locate old firmware.