DFS

I think that my computer was infected with the ave.exe virus. First, every time I turn on my computer I have this popup saying “Vista Security Tool 2010-Unregistered Version.” It starts scanning my computer and finds 32 Trojans. Then annoying messages pop up saying that my computer is infected and I need to buy the 2010 Vista Security to get rid of these viruses. How can I get rid of this ave.exe virus? Please help me because this is a school laptop I am using. Thank you so much!

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