第一步：在桌面上点击开始，在里面打开运行，然后在命令行里输入%systemroot%system32driversetc，确定。
第二步：然后就出现文件夹窗口，在里面找到hosts，鼠标右键单击这个文件，在下拉里面点击删除。
第三步：然后在文件夹窗口，用鼠标右键点击空白处，新建文本文档。
第七步：把# 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
复制到记事本里。
