Because BIOS level rootkits are stored on a memory chip rather than on a hard drive, Best Malware Removal Program they
can survive the complete reformatting of your hard
disk that occurs when you re-install your operating system.
Still, computer systems are highly vulnerable because viruses
are engineered to counter existing defenses.
It spreads whenever the host program is copied onto a plastic diskette (now dead), CD, DVD, pen drive
from one computer, and then loaded into another.