The problem with a virus is that when you do a scan in windows it can not detect it sometimes if it already manifested into the system files.

You need to do the offline scan, it removes all the variables of the virus fooling the anti virus software.

By saying your not smart enough to understand what I wrote, I am inclined to believe you are trolling instead.

There are people in this form that will help, a lot in the I.T. industry, but once you are identified as a troll all bets are off.