Malware refers to any software that secretly infiltrates and damages a computer system without the informed consent of the owner. Despite the use of anti-virus and anti-spyware software, malware can still affect even careful users. One of the stated goals of the Microsoft Windows Vista release is to greatly improve the overall security of the Windows operating system and curb the impact of malware. To this end, Microsoft redesigned both the least user and administrative accounts on Vista; the result is perhaps the most secure version of Windows in the age of the Internet.