当您的计算机无法连接到 Microsoft 的Windows Update服务器时，会出现Windows Update 错误代码。^{(Update Error Code)}该错误通常发生在您真正能够下载和安装任何新更新之前。了解修复Windows Update错误代码 0x80072efe 的两种方法。

什么是Windows 更新错误 0x80072efe^{(Windows Update Error 0x80072efe)}？

要下载和安装Windows更新，您的Windows安装必须满足特定条件，以便Microsoft知道您正在将更新下载到经过认证的操作系统副本。奇怪的是，这包括在您的 PC 上设置正确的日期和时间。如果没有正确的日期和时间，您可能会收到错误 0x80072efe。

您还必须有可行的Internet连接才能下载更新。安装在 PC 上的防火墙^(Firewalls)、病毒扫描程序和其他软件可以在您的计算机和Windows 更新^{(Windows Update)}服务器之间访问。禁用Windows 防火墙^{(Windows Firewall)}有时会修复该错误。您只需要记住在完成后将其重新打开。

更改日期^(Date)和时间^(Time)以修复错误 0x80072efe^{(Fix Error 0x80072efe)}

^(Log)使用具有管理权限的帐户登录到Windows 7 。在桌面的右下方，记下日期和时间。如果它们不正确，请单击它们，然后单击标有更改日期和时间设置^{(Change Date and Time Settings)}的链接。您现在应该查看日期和时间^{(Date and Time)}窗口。单击^(Click)标记为Change Data and Time的按钮。

只需^(Simply)将日期和时间更改为正确，然后单击“确定^(OK)”按钮。单击日期和时间窗口上的^{(Date and Time)}确定^(OK)按钮，然后再次尝试Windows 更新^{(Windows Update)}。如果它不起作用，或者您的日期和时间一开始是正确的，请继续进行第二个修复。

关闭 Windows 防火墙^{(Turn Off Windows Firewall)}以修复错误 0x80072efe^{(Fix Error 0x80072efe)}

单击Start>Control Panel>System and Security>Windows Firewall以打开Windows 防火墙^{(Windows Firewall)}窗口。您会注意到您的网络分为两种类型。一个是家庭或工作（私人）网络^{(Home or Work (Private) Networks)}，另一个是公共网络^{(Public Networks)}。除非您在家中通过公共网络连接到Internet ，否则我们只对专用^(Private)网络感兴趣。

在窗口的左侧，单击标有打开或关闭窗口防火墙^{(Turn Window Firewall On or Off)}的链接。这将打开Window Firewall的^{(Window Firewall)}自定义设置^{(Customize Settings)}窗口。找到与家庭或工作（私人）网络位置设置^{(Home or Work (Private) Network Location Settings)}关联的窗口部分。单击标题为关闭 Windows 防火墙（不推荐）^{(Turn Off Windows Firewall (Not Recommended))}的选项。然后，单击确定^(OK)按钮并关闭您打开的任何其他窗口。

重新启动计算机并尝试再次连接到Windows 更新^{(Windows Update)}。大多数人发现这两个修复程序之一可以使Windows 更新^{(Windows Update)}再次工作。如果有效，请记住重新打开Windows 防火墙^{(Windows Firewall)}。

如果这些修复不起作用，您将不得不探索无法连接到 Microsoft 服务器的其他原因。对于初学者，请禁用您正在运行的任何病毒扫描程序，并检查您是否在Windows 7中运行了任何其他防火墙。一次禁用它们，然后检查Windows 更新^{(Windows Update)}是否再次开始工作。

有时您的 PC 将无法连接到Windows 更新^{(Windows Update)}并返回错误代码 0x80072efe。通常，错误设置的日期/时间或Windows 防火墙^{(Windows Firewall)}是罪魁祸首。检查您的 PC 的日期/时间并暂时关闭Window 防火墙^{(Window Firewall)}可以解决此问题。如果没有，您将不得不寻找导致您的 PC 无法连接到Windows 更新^{(Windows Update)}的其他原因，例如额外的防火墙软件或过度的病毒扫描程序。

Two Easy Fixes for Windows Update Error Code 0x80072efe

Windows Update Error Code occurs when your computer is having trouble connecting to Microsoft’s Windows Update server. The error usually occurs before you are actually able to download and install any new υpdates. Learn two ways to fix Windows Updаte еrror code 0x80072efe.

What is Windows Update Error 0x80072efe?

To download and install Windows updates, your installation of Windows must meet certain criteria so Microsoft knows that you are downloading the updates to a certified copy of the operating system. Oddly, this includes having the correct date and time set on your PC. Without the correct date and time, you can get error 0x80072efe.

You must also have a viable connection to the Internet to download updates. Firewalls, virus scanners, and other software you have installed on your PC can get between your computer and the Windows Update servers. Disabling Windows Firewall sometimes fixes the error. You just need to remember to turn it back on when you are finished.

Change Date and Time to Fix Error 0x80072efe

Log in to Windows 7 using an account that has administrative privileges. In the lower right of your desktop, note the date and time. If they are incorrect, click on them and then click the link labeled Change Date and Time Settings. You should now be looking at the Date and Time window. Click on the button labeled Change Data and Time.

Simply change the date and time to be correct and click the OK button. Click the OK button on the Date and Time window and try Windows Update again. If it doesn’t work or if your date and time were correct in the first place, move on to the second fix.

Turn Off Windows Firewall to Fix Error 0x80072efe

Click on Start>Control Panel>System and Security>Windows Firewall to open the Windows Firewall window. You’ll notice that your networks are split into two types. One is Home or Work (Private) Networks and the other is Public Networks. Unless you are connecting to the Internet over a public network in your home, we are only interested in the Private network.

On the left hand side of the window, click on the link labeled Turn Window Firewall On or Off. This opens the Customize Settings window for Window Firewall. Locate the section of the window  associated with the Home or Work (Private) Network Location Settings. Click the option titled Turn Off Windows Firewall (Not Recommended). Then, click the OK button and close any other windows you have open.

Restart your computer and try to connect to Windows Update again. Most people find that one of these two fixes makes Windows Update work again. If it works, remember to turn Windows Firewall back on.

If these fixes don’t work, you will have to explore other reasons why you cannot connect to Microsoft’s servers. For starters, disable any virus scanners you have running and check to see if you have any other firewalls running in Windows 7. Disable them one at a time and check to see if Windows Update starts working again.

Sometimes your PC will have trouble connecting to Windows Update and return error code 0x80072efe. Usually, an incorrectly set date/time or the Windows Firewall are to blame. Checking your PC’s date/time and temporarily turning off Window Firewall fixes the problem. If not, you will have to look to other reasons why your PC cannot connect to Windows Update such as additional firewall software or overeager virus scanners.

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