When I run recently released A04 bios setup on a 64-bit Studio 14z, I am getting a failure saying "Driver has been blocked from loading" (Error code 1275). For some reason, the bios setup is not signed and as far as I understand 64-bit windows doesn't load unsigned drivers.

Does anyone know of a workaround to install latest bios?  I have a laptop without any DVD drive and neither do I have an USB DVD drive around. Its really strange to me why dell would release an unsigned installation.

Thanks in advance for your response.