Hi there, I was out of my country for a while and when I returned my family told me that the desktop computer is not working. Now when I try to start the system, it works fine until a message appears like "Unknown CPU detected. BIOS update is required to unleash its full power. Press F1 to continue". This message was always there though, and when I pressed F1 it continued on the starting process. However now the F1 does not seem to work. I had a generic keyboard so maybe I thought it was because of that, so I went and bought an USB one and still no progress. I wanted to reinstall windows to fix the issue however I cant access bios with the del key for some reason although it is clearly stated that I need to press del to enter bios. Computer is like 4 years old and here are the specs, Dual Core 2.2 GHz Intel CPU 8gb of Ram Asus Commando motherboard 750W Thermaltake power supply Geforce 8600GT Win 7 I formatted my pc a lot of times and it always worked fine until now, bear in mind that this is a computer I put together, and also there is no burning smell or shutdowns happening. It just stays at that message and none of the keyboard keys seem to work. I would really appreciate any help.