I have an HP Vectra XE 310, it is about 3 months old. When I first got it, I received the message that modem was not present. I called HP support, and they told me how to reset Bios. I tried that, and it worked. The modem was back. I don't know a lot about computers, and I need to know if resetting bios again will cause me to lose the programs that I have installed on my computer.