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Windows 10 contains major changes to Windows Update operations; it no longer allows the manual, selective installation of updates. All updates, regardless of type (this includes hardware drivers), are downloaded and installed automatically, and users are only given the option to choose whether their system will reboot automatically to install updates when the system is inactive or be notified to schedule a reboot. Microsoft offers a diagnostic tool that can be used to hide updates and prevent them from being reinstalled, but only after they had been already installed, then uninstalled without rebooting the system.
All updates to Windows 10 are cumulative. Initially, Microsoft withheld information on the specific changes within each update within its KB articles. However, since early 2016 Microsoft has begun releasing more detailed information on the specific changes within each update.
Windows Update on Windows 10 supports peer to peer distribution of updates; by default, systems’ bandwidth is used to distribute previously downloaded updates to other users, in combination with Microsoft servers. Users may optionally change Windows Update to only perform peer to peer updates within their local area network.