Sorry for dragging this old thread out of the mud.
Just want to tell something that might be of help to some windows users here.
I recently found out that my aunt who is using a six year old laptop never does a virus scan and ignored windows updates. Luckily the latter was set to automatic but she never installed XP service pack 3, it was just waiting there for years.
The laptop has been used by her for the last three years, she surfs the internet on an old version of IE. From what I understand the laptop is on most of the day and she likes surfing a lot.
It has had Avast! Free antivirus installed on it since the beginning. But it was running an old version because she had no clue how to run a scan let alone how to upgrade, but the virus definitions still updated automatically.
There were some weird things going on on that laptop so I talked her through how to run a scan over the phone. It found two viruses and then gave a weird log screen with all kinds of stuff. From what I could understand a really old version of ad-aware was in the way, but I'm not sure because I never saw the screen.
So I had her bring the laptop to me. I uninstalled ad-aware and avast. Then installed Malwarebytes and after two hours of a full scan it found nothing! After six years, nothing! That's a better score then my much newer laptop with a paid virus scanner. I then installed the latest version of Avast! Free, ran a scan, nothing again. But that made sense since the old version had already scanned it not long ago. Then I found out that the weird behaviour was caused by some wrong settings.
The point of this post it, if you don't have an up to date virus scanner, get avast! free. It seems to be doing at least as good a job as well known paid for packages. From now on I'll only pay if it's offering features that you cannot get with avast! free and after I've done some intensive research into what the best scanner really is.
A footnote. Avast! Free doesn't offer a firewall. So if you're not behind a router the windows firewall might not be enough. There are some free great firewalls out there. Comodo and Zonealarm are usually recommended.
Just posting this here because lots of people said malwarebytes picked up dozens, if not hundred threats, and on this old laptop used by someone who isn't very computer literate, it picked up none.
Maybe just lucky, but this free scanner is doing something right.
