Laptop est muerte

I tried to download a file yesterday just a song, but I noticed tht it had .exe....didn't notice it until it came in -- computer went haywire, installed a new start page, 2 new shortcuts on my desktop, my virus program gave about 5 alerts, one saying sometihng about the registry. It was so slow and doing so much crap, I restarted it and now it won't boot up.

I tried F8 and safe mode, every mode possible and it always does hte same thing -- it looks like it's booting and then just goes to a black screen and then nothing.