Hello , I've instaled nod32 2.7 , a trial version , and the windows start-up is quite slow . Also svchost has a mem usage that never drops below 35 000 k . The problem gets worse when I scan the PC or update . I've scanned my PC with nod in depth mode and said that the system was infected , but that type of scan was taking to much time and I've canceled it . With the normal scan , no virus or spyware was detected . I've also scaned the PC with Spyware S&D and several copies of a trojan were found ( I can't remember the name right now ) were found . Please help me .