I've downloaded the openoffice package from a website (I know, I should had to downloaded it from the official site), and and after i've installed it, my computer became too slow. So, I've run the free scanning process available in a site called "Infectedornot.com" (or something) and it found 5 virus!!!. I'm really angry with this situation I'm in the process of cleaning it, but take my advice: do not download oppenoffice package from unknown sites, I don't do that anymore!!!
hard lesson to learn mate but its a good one to learn but thats just shitty ... good luck getting it back to normal