How we help keep your data safeĭelivery Optimization can’t be used to download or send personal content. Windows uses the fastest, most reliable download source for each part.ĭelivery Optimization creates a local cache, and stores files that it has downloaded in that cache for a short period of time. Windows then gets parts of the update or app from the PCs that have it, and parts from Microsoft. Instead, the download is broken down into smaller parts. Windows doesn’t download the entire file from one place.

When Windows downloads an update or app using Delivery Optimization, it will look for other PCs on your local network (or from the internet, depending on your settings) that have already downloaded that update or app. Sharing this data between PCs helps reduce the internet bandwidth that’s needed to keep more than one device up to date or can make downloads more successful if you have a limited or unreliable Internet connection.

Delivery Optimization also sends updates and apps from your PC to other PCs on your local network or PCs on the internet, based on your settings. Windows Update Delivery Optimization works by letting you get Windows updates and Microsoft Store apps from sources in addition to Microsoft, like other PCs on your local network, or PCs on the internet that are downloading the same files. You’re in control over whether you use Delivery Optimization with the settings described in this article. Windows Update Delivery Optimization helps you get Windows updates and Microsoft Store apps more quickly and reliably.

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