Case Study: "On Becoming An Antivirus Technician"

Note:  I have made this post in response to a request from one of your classmates.

Suppose you are an IT (software) technician being asked to troubleshoot (possible) virus /malware issues on a laptop PC.

Give a step-by-step procedure on how to properly and safely remove the virus(es) /malware infection(s), if they exist.  

Otherwise, outline a way to efficiently determine if the laptop is virus-free.

Assumptions:  OS = Windows XP SP2, Laptop has (3G, wireless) Internet connection

[Original] Submissions from the various groups

Group 1 - Kemosabe and Nats

Group 2 - Chester and Numer

Group 3 - Jurjur and Mosli

Group 4 - Tatin and Kenneth

Group 5 - James and Hazel

Group 6 - Jona and Lyka

Group 7 - Divine and Mich

Group 8 - Jelo and Ced

Group 9 - Pau and Leah

Group 10 - Rich and Eika

Group 11 - Myko, Trebs and Wendy

For any broken hyperlink(s), kindly inform me ASAP.