We use Norton. But this was more than just a virus fix.
Oh.. Oh dear.. Umm.. Huli? DON’T USE NORTON. Period. It’s actually WORSE than not having any antivirus at all. The fastest way to tell if an IT guy is any good is to say ‘I use Norton’ and see if they wince.
See, it’s often pre-installed on computers, or comes free trial, or whatever.. point is, a lot of not-computer-savvy people have it, including businesses. This makes it a ripe target for hackers to circumvent. And circumvent they do. Handily. The nastier trojans will actually hollow out Norton, wear it as a hat, and tell you everything is fine while they use your computer.
MSE is also a bit easily-targeted, I’m afraid, though not to the degree poor Norton is.
Myself, I have AVG Free. Decent, easy to set up. This is combined with Spybot Search and Destroy, which has a resident program to watch for odd changes.