Windows 10 uses your bandwidth to send other people updates
Windows 10 uses your internet connection to share updates with others across the internet. This feature, called Windows Update Delivery Optimization, is designed to help users get updates faster and is enabled by default in Windows 10 Home and Pro editions. Windows 10 Enterprise and Education have the feature enabled, but only for the local network.
It’s basically how torrents work: your computer is used as part of a peer to peer network to deliver updates faster to others.
You can disable WUDO, but the option is buried in the settings menu for Windows Update under ‘advanced options’ then ‘choose how updates are received.’
Microsoft says that delivery optimization will not download or send personal content and only sends “parts” of the update cache.
You can stop it sharing updates on these types of connections by setting your connection to metered or disabling the delivery optimization feature entirely.
So, take note!
