program.exe (W32.Botou) detected by Auto Protect

hi .. im new to this,

when i install my external hard drive to my laptop some of my files (movies, pictures ..)  got lost and i found out that NIS has detected the W32.Botou virus and transferred all my infected files in quarantine .. now, im running a full system scan and it displays "3 files being processed" for almost a day ..  how can i restore my infected files and cure the virus .. thank you in advance.

 

files missing still occupies space on my external HDD

NIS system status "secure"

NIS run live update "updated"