EXPLANATION
Windows Update Delivery Optimization helps you get
Windows updates and Microsoft Store apps more quickly and reliably.
You’re in control
over whether you use Delivery Optimization with the settings described
in this article.
How Delivery Optimization works
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. 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. 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.
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. Windows
doesn’t download the entire file from one place. Instead, the download
is broken down into smaller parts. Windows then gets
parts of the update or app from the PCs that have it, and parts from
Microsoft. Windows uses the fastest, most reliable
download source for each part.
Delivery Optimization creates a local cache, and
stores files that it has downloaded in that cache for a
short period of time.
How we help keep your data safe
Delivery Optimization can’t be used to download or
send personal content. Delivery Optimization doesn’t access
your personal files or folders, and it doesn’t change any files
on your PC.
Delivery Optimization downloads the same updates and apps that you would
get through Windows Update and Microsoft Store, using the same security
measures. To make sure you’re getting authentic updates, Delivery
Optimization gets information securely from Microsoft
to check the authenticity of each part of an update or app that
it downloads from other PCs. The authenticity of the
downloads is checked again before installing it.
How to control Windows Update Delivery Optimization
To stop downloading updates and apps from or sending updates and apps to other Windows 10 devices on the Internet:
- Select the Start button, then select Settings > Update & Security > Windows Update > Advanced options.
- Select Delivery Optimization (or Choose how updates are delivered in earlier versions of Windows 10).
- Select PCs on my local network.
To stop downloading from or uploading to other PCs on the local network:
- Select the Start button, then select Settings > Update & Security > Windows Update > Advanced options.
- Select Delivery Optimization.
- Make sure Allow downloads from other PCs is turned Off.
You'll get updates and apps directly from Windows
Update and from Microsoft Store with Delivery Optimization; however,
you won’t download from or upload to other PCs.
If
you use a metered or capped Internet connection, Delivery Optimization
won’t automatically download or send parts of updates
or apps to other PCs on the Internet.
To identify a Wi‑Fi or Ethernet connection as metered or capped:
- Select the Start button, then select Settings > Network & Internet > Wi‑Fi.
- Select the network you’re using, and then turn on Set as metered connection.
