传统上，Windows 10 更新从Microsoft的服务器下载到您的 PC。虽然这是获取未经篡改的更新文件的最安全方式，但它并不是您可以使用的最快交付方式。(delivery method)它也对带宽不友好，对于互联网连接有限的人来说可能是个问题。借助名为传递优化(Delivery Optimization)的功能，您可以将Windows 10设置为从本地网络或 Internet 上的其他 PC下载更新以及Microsoft Store 应用程序的更新。(Microsoft Store apps)这是如何做：
注意：(NOTE:)本指南基于Windows 10 October 2018 Update创建。要查找您拥有的版本，请阅读本指南：我安装了哪些版本、版本和类型的Windows 10？
如何在本地网络上的Windows 10计算机之间共享更新(Windows 10)
要将Windows 10设置为从多个来源获取更新，请启动“设置”应用(Settings app)（按键盘上的Windows + I在“设置”(Settings)应用中，转到“更新和安全”(Update & security)。
在左列中，选择Delivery Optimization。您的 PC 上可能会关闭此功能。要启用它，请将“允许从其他 PC 下载”("Allow downloads from other PC's")开关设置为On。
您可以访问有关 Windows 10 如何从 Internet 和本地网络下载更新的选项。选择(Choose)：
- “我本地网络上的电脑”("PCs on my local network")
- “我本地网络上的电脑和互联网上的电脑”("PCs on my local network, and PCs on the internet")
当您打开这些选项时，“您的 PC 可能会将以前下载的 Windows 更新和应用程序的一部分发送到本地网络或 Internet 上的 PC。当您在 Internet 上时，您的 PC 不会将内容上传到 Internet 上的其他 PC。计量网络。”("your PC may send parts of previously downloaded Windows updates and apps to PCs on your local network or on the internet. Your PC won't upload content to other PCs on the Internet when you're on a metered network.")
为使其工作并提供有意义的结果，必须在所有 PC 或至少在您的网络或 Internet 中的几台 PC 上启用它。当您位于具有多台Windows 10计算机的本地网络中时，请在所有计算机上重复此过程。此外，要使传递优化(Delivery Optimization)正常工作，您的Windows计算机共享的网络必须设置为Private，而不是Public。您可以在本教程中了解更多信息：如何将Windows 10 网络位置(network location)更改为私有（或公共）。
启用传递优化(Delivery Optimization)后，将使用对等连接在计算机和设备之间交换 Windows 10 更新。您的 Windows 10 PC 或设备现在不仅可以从Microsoft的服务器接收更新，还可以从其他计算机接收更新，无论它们是在您的本地网络上，还是连接到 Internet，这取决于您设置传递优化(Delivery Optimization)的方式。
如何检查传递优化(Delivery Optimization)是否在Windows 10中有效(Windows 10)
您需要等待几天，直到交付优化(Delivery Optimization)完成其工作，并改进从Microsoft或其他 PC 下载的 Windows 10 更新的数量。
完成我们之前向您展示的设置后，等待大约一周，然后返回"Settings -> Update & Security - Delivery Optimization."然后，单击或点击活动监视器(Activity monitor)。
现在，您可以看到Windows 10(Windows 10) 更新(Update)执行的下载和上传统计数据，其中包含传递优化(Delivery Optimization)。我们在本地网络中的一台 PC 经常在线。因此，当我们查看它的下载统计(Download Statistics)信息时，我们看到它 100% 的Windows 10更新是从Microsoft下载的。但是，我们还在上传统计(Upload Statistics)信息中看到它已将更新上传到网络上的其他 PC，这些 PC 在线较少。
在来自同一网络的另一台Windows 10 PC 上，我们有一些令人兴奋的(Windows 10)下载统计数据(Download Statistics)，表明交付优化(Delivery Optimization)运行良好，它设法从其他 PC 下载了几乎一半的Windows 10更新，包括本地网络和互联网。
您(Did)是否将 Windows 10 设置为从本地网络或 Internet 下载更新？
如您所见，配置Windows 10设备以从多个来源获取更新并不复杂。这种方法有一些优势：Windows 10更新的下载速度更快，所需的 Internet 带宽更少，因为一些更新是从本地网络和其他已经拥有这些更新的 PC 下载的。在关闭本指南之前，请告诉我们您如何在Windows 10中设置(Windows 10)交付优化(Delivery Optimization)功能：您是只想从本地网络上的其他 PC 下载更新，还是从 Internet 下载更新？在下面发表评论(Comment)，让我们讨论。
Update Windows 10 from another PC on the local network, or the internet
Τraditionаlly, Windows 10 updates are downloaded frоm Microsoft's servers to your PC. While this is the most seсure way of getting untampered update files, it is not the fastest delivery method that you can use. It's also not bandwidth friendly and can be problematic for рeople with limited internet cоnnections. With the help of a feature called Delivery Optimization, you can set Windows 10 to download updates, as well as updates for Microsoft Store apps, from other PCs on the local network, or on the internet. Here's how:
NOTE: This guide is created based on Windows 10 October 2018 Update. To find which version you have, read this guide: What version, edition, and type of Windows 10 do I have installed?
How to share updates between Windows 10 computers on the local network
To set Windows 10 to get updates from multiple sources, start the Settings app (press Windows + I on your keyboard). In the Settings app, go to Update & security.
In the left column, choose Delivery Optimization. This feature may be turned off on your PC. To enable it, set the "Allow downloads from other PC's" switch to On.
You get access to options for how Windows 10 downloads updates from the internet and the local network. Choose between:
- "PCs on my local network"
- "PCs on my local network, and PCs on the internet"
When you turn on these options, "your PC may send parts of previously downloaded Windows updates and apps to PCs on your local network or on the internet. Your PC won't upload content to other PCs on the Internet when you're on a metered network."
For this to work and deliver meaningful results, it must be enabled on all the PCs or at least on a few PCs from your network, or the internet. When you are in a local network with multiple Windows 10 computers, repeat this procedure on all of them. Also, for the Delivery Optimization to work well, the network your Windows computers share must be set as Private, and not Public. You can learn more in this tutorial: How to change the Windows 10 network location to private (or public).
When Delivery Optimization is enabled, Windows 10 updates are exchanged between computers and devices using peer-to-peer connections. Your Windows 10 PCs or devices now receive updates not only from Microsoft's servers, but also from other computers, be they on your local network, or connected to the internet, depending on how you have set the Delivery Optimization.
How to check if Delivery Optimization works in Windows 10
You need to wait a few days until Delivery Optimization gets its job done, and delivers improvements on how many Windows 10 updates are downloaded from Microsoft, or other PCs.
After making the settings we showed you earlier, wait about a week and get back to "Settings -> Update & Security - Delivery Optimization." Then, click or tap on Activity monitor.
Now you see statistics for downloads and uploads performed by Windows 10 Update with Delivery Optimization. One of our PCs in the local network is frequently online. Therefore, when we look at the Download Statistics for it, we see that 100% of its Windows 10 updates are downloaded from Microsoft. However, we also see in the Upload Statistics that it has uploaded updates to other PCs on the network, that are online less.
On another Windows 10 PC from the same network, we had some exciting Download Statistics, showing that Delivery Optimization works well, and it managed to download almost half of Windows 10 updates from other PCs, both from the local network and the internet.
Did you set Windows 10 to download updates from the local network or the internet?
As you can see, configuring a Windows 10 device to get updates from multiple sources is not that complicated. There are advantages for this approach: faster downloads for Windows 10 updates and less internet bandwidth required because some updates get downloaded from the local network, and other PCs that already have those updates. Before closing this guide, tell us how you have set the Delivery Optimization feature in Windows 10: do you want to download updates only from other PCs on the local network, or also from the internet? Comment below and let's discuss.
