ako nod ne radi onda prvo skini antivirus sa linka (nemoj instalirati prije nego uklonis nod)
http://download.cnet.com/Avira-AntiVir-Personal-Free-Antivirus/3000-2239_4-10322935.html?part=dl-10322935&subj=dl&tag=button&cdlPid=11012914
Kada ga instaliras, resetuj PC i udji u safe mod, tada...