I understand that this is a virus and i was wondering how to completely remove it?

Every time i load up the internet, i get redirected into buying this software to remove the viruses. When i run windows defender it says there are 30 infections. I get a constant pop up of threats and keep being told to purchase the vista smart security in order to remove all of the viruses.

How do i completely remove this virus?

Thanks

I have two partitions on my laptop. They are both 60GB. One was made for back-up (by toshiba, not me). I tried to delete it and it came up as unnallocated space. How do I combine it with the main partition without reinstalling vista and all my programs?

My windows vista laptop is quite slow on the internet so what can i do to make it faster?

I have vista and want to make yahoo my default email. I tried under tools, internet options,programs. But there is no email option.