Internet Problems!

[Dark Lord Sauron]

Yo, I have a massive problem with my family’s computer. It doesn’t really affect me since I have my own comp, but the rest of the family is in big trouble if it doesn’t get fixed.

Apparently, my brother inadvertently installed some spy ware while surfing the internet. I decided to use Ad-Aware, as it had helped me get rid of spy ware on my computer. When I tried running it, however, I got a message saying that the computer was being automatically shut down in 60 seconds. According to the message, something to the effect of NT Service\Authority initiated the shutdown. I managed to quarantine what I had found but I couldn’t get a full list. I decided to unplug the internet and try to use Ad-Aware. It worked, I managed to get a full list and then deleted all of it. However, now the internet doesn’t work on that computer. I don’t know when it failed, whether it was when those automatic shutdowns were prompted, or if I deleted something I shouldn’t have with Ad-Aware. It knows the connection is there, but it won’t work. How do I fix this?