文档介绍：大势至电脑USB端口控制软件、计算机USB端口设置软件使用教程
of rural drinking water sources, protection of drinking water sources in rural ter sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
大势至内网安全卫士（局域网接入控制软件、防止蹭网软件、禁止局域网手机、平板电脑上网、检测局域网无线路由器……）的使用说明一样简单明了，点点鼠标即可完全启用。
首先，需要下载大势至USB端口管理软件，百度搜索“大势至USB端口控制软件”即可下载，然后点击进去即可下载最新版，如下图所示： 
图：百度搜索“大势至USB端口管理软件” 
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
 
图：下载大势至USB端口控制软件
 
首先安装大势至USB控制器，按照说明直接点击下一步（Next）即可一键安装成功，安装成功程序将自动隐藏，你可以用热键：Alt+ctrl+u唤出界面，默认密码是：123，进去之后你可以修改密码。如下图所示：
 
图：输入默认密码
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rur