为什么我用百度搜索会变成GOOLGE搜索.而且百度一下变成搜索以下不可待 急急急急急急急急

Hosts文件被更改，位置C:\WINDOWS\system32\drivers\etc；用记事本打开hosts文件，就可以看见了微软对这个文件的说明。
Hosts文件文一般有如下面的基本内容 ，把不相干的删掉即可。

# 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 these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
# 102.54.94.97 rhino.acme.com # source server
# 38.25.63.10 x.acme.com # x client host

127.0.0.1 localhost
************************************************
也可用软件修复，瑞星卡卡，