我这几天一打开QQ空间就立刻转到什么MV的网站?怎么办啊?

广告间谍
我给你推荐一套组合
卡巴+木马清道夫
将二者的优点集合 可以做到完美查杀
不用在为了 广告间谍 木马病毒 等 担忧
http://www.newhua.com/soft/37369.htm
http://www.kaspersky.com.cn/webscanner/index.html#

打开 C:\WINDOWS\system32\drivers\etc\hosts(用记事本打开)

然后看看里面的IP地址。。

正常的应该如下
# Copyright (c) 1993-1999 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as the