They are suppose to perform both actually. Before and after the virus infects your computer. Just get AVG the free one, trust me probably the best out there.
Remember to update it regularly. Also I advice you to get malwayrebaytes. You will need to pay for Real Pretection Time but you don't have to if you don't want that.
You can still use it with out that feature. Now what you need to do to remove any virus in your computer is. Install both AVG and Malwarbytes, and update though right way.
You need to update them, its veryy important before you start scanning your computer. Restart your computer.. press F8 when the computer is rebooting. Go to save mode.
Lunch AVG, the scan for virus. After that is completed. Restart your computer again.
Go to save mode ( while your computer is restarting press F8 repeatedly). Lunch Malwarebytes and scan the whole computer. Good luck.
If you install Antivirus software on an already infected computer, the Antivirus software may remove the virus. The bad news is that a virus may not allow you to install Antivirus software on the computer. You are supposed to install Antivirus software before you are infected.
If you are already infected, don't install antivirus software until you have disinfected your system. You need to use portable software to clean the virus, then install the antivirus software. Portable antivirus software includes Microsoft Safety Scanner http://www.microsoft.com/security/scanne... Doctor Web Cureit http://www.freedrweb.com/cureit/?lng=en.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.