1、首先我们按下Crtl+R呼出CMD命令符，然后将这段内容粘贴到命令符里：netsh winsock reset
2、接下来我们继续输入“netsh interface ip set dns 本地连接 static 114.114.114.114”和“netsh interface ip add dns 本地连接 233.5.5.5”DNS更换命令更换我们电脑内的DNS，我们也可以根据下面的DNS排名选择适合自己的DNS。
3、然后我们找到自己电脑内的hosts文件，然后以记事本的格式打开。hosts文件默认路径为：C:\Windows\System32\drivers\etc
4、我们输入以下内容：# Copyright (c) 1993-2009 Microsoft Corp.## This is a sample HOSTS file use颊俄岿髭d 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 localhost23.52.74.146 steamcommunity.com不要忘记保存，在修改Hosts文件前注意备份
5、最后我们登入steam你会发现我们可以正常访问网页了，也不会提示invalid ssl certificate这个问题了。
