Good evening sir, I am the student of B.tech. computer science from up technical university, India.I have my laptop of toshiba company.and I have installed quik heal anti virus software.but my quick heal anti virus is detecting a file named worm.autorun.wz in every removable device such as pendrive,memory card.even when the device contains no data ,it detects this virus.I do not know what is the actual problem.I only came to know that perhaps this virus is in my computer system.kindly tell me how can I remove this virus from my system without changing the operating system of my laptop.I will be really thankful to you.