Re: which virus restart the computer ??
try a virus checker like avg and trend micro (google them). try hijack this aswell (and post the log the program creates in this thread), look through all your windows folders for dogey looking files and folders and delete them. this method should clear some nasties from your pc
Laptop spec: ASUS X53E, i5 2430m 2.4ghz, 3gb ram, 320gb hdd, intel hd graphics, usb 3.0