If that large file is a backup image, then maybe your anti-malware tool knows what I know… that there’s no point in scanning it.
Economic change is actually nothing new. I feel pretty strongly that you can’t blame the internet for the economy – find out why!
If you follow a few security measures it’s perfectly safe to uninstall an old anti-malware program and then install your new choice.
What I’d do first is just try it. If that doesn’t work then we’ll have to dig a little deeper to find a solution for you.
XP machines may have a slightly increased risk of spreading malware. But in the end it boils down to safe computing habits – both for you and your friends.
It’s important to keep software up to date, and there are several ways to do it. But when it comes to drivers… be careful!