Too much virus attack on my system

[darknite]

What firewall do you have in place?

And you ONLY visit Youtube and the BBC? No other sites at all?

I visit other sites also, but at the time of incidence these were the only two I was accessing.
Thanks for all of the useful responses
As It's my office laptop, I don't have much control over build. I'm sure office people put lots of services open and I don't know which one got exploited.
I discuss it with the IT team in office, they said the home connection is not secure, so I should not use that. They also disable the default windows firewall. So only hope is to try some hardware firewall. I'll give it a try soon and see what happens.

Cheers
Darknite