Flashing Bios
 

Biosflashing:Not that difficult atleast not on a "newer" computer,
The BIOS is located on a sperate "flashmodule" a small memory chip
located on your motherboard, for price and availability for a new
chip check with your motherboard or computer vendor. The operation it
self requires a screwdriver..or a small pair of pliars but there is no
soldering involved, and yes for one reason or another BIOS-upgrades go
wrong so therefor the chip is exchangable.

( i have worked with precisely these form of questions when i worked
for HP/Compaq and Gateway as a technichan/Enterprise Analyst.)