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加快上网速度有妙招 修改注册表

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　　无论你是拨号上网，还是用ADSL宽带上网，你肯定都会希望自己的网速能够更快一些，即使你是通过卫星传输方式上网，你也会希望能快一点、再快一点。通过修改Windows 系统中的某些参数设置，可以大大加快上网速度，而这往往都需要修改注册表,那么如何修改注册表呢?

　　在注册表中设定适当的TcpWindow值，就可以加快上网速度。(请朋友们注意：如网速正常的效果不明显)

　　通过修改注册表项，来实现上网速度的提升，自己动手，丰衣足食，知道了原理，来手工修改也是很方便的!具体修改步骤：

　　1、打开“注册表编辑器”(开始-运行-输入regedit);

　　2、其中找到“HKEY_LOCAL_MACHINE\System\CurrenControlSet\Services\Tcpip\Parameters”子键;

　　3、在右边键值区中，找到或新建一个名为“GlobalmaxTcpWindowSize”的DWORD键值项;将其数据值数据设为“256960”(十进制)，当然，相近的数值也是可以的;

　　4、关闭“注册表编辑器”，重新启动电脑即可!

　　自己感觉一下，是不是上网速度比以前快多了?

　　这个更改的原理是：通常情况下，TCP/IP默认的数据传输单元接受缓冲区的大小为576字节，要是将这个缓冲区的大小设置得比较大的话，一旦某个 TCP/IP分组数据发生错误时，那么整个数据缓冲区中的所有分组内容，都将被丢失并且进行重新传送;显然不断地重新进行传输，会大大影响ADSL传输数据的效率。为此，设置合适缓冲区大小，确保ADSL传输数据的效率始终很高，将会对ADSL传输速度有着直接的影响!

　　温馨提示：对电脑知识掌握不多的朋友，建议您不要随便修改注册表的参数，或是请了解电脑知识的人帮忙。

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