i have a processes named svchost.exe, that appears in my processes list, and it uses a big part from my virtual memory ( 100 mg to 150mg ) and 50 ( in some times 80) percent from the UC, and when i tried to remove it, i had a problem with the sound ( no sound, i can't play MP3, or any game). perhaps you'll say that's a normal file, but i hadn't this before,.., so i tried to restor my pc but invain..... please help me!!!