Thanks for the reply it's just that on the kaspersky live chat they told me it's a bad idea and it would conflict with the one on the main os. But then again when I said XP mode they really didn't know what I was talking about. He also said that the one on the main os will detect a file even if it's on XP Mode. I even asked him so why XP Mode ask me to install a antivirus. So should I try it anyway?