1、首先我们如今hosts文件夹，然后以记事本格式打开hosts文件；详情参考下图
2、然后我们在hosts文件文件里输入以下内容：
# Copyright (c) 1993-2009 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
# localhost name resolution is handled within DNS itself.
# 127.0.0.1 localhost
# ::1 localhost
这个的意思是让我们的hosts文件初始化，有事因为我们的hosts文件文件阻止我们访问steam服务器所以就会出现这种情况
3、接下来我们呼出win+r运行，然后输入CMD呼出命令符；详情参考下图
4、最后我们在命令符中输入：ipconfig /flushdns 后然后在输入：netsh winsock reset
5、这时我们可以尝试打开steam了，如果依然无法进入，那么我们在桌面上的steam图标目标中输入-tcp就可以正常登入了。
