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There are options to disable only the worst offenders (turn off telemetry, peer-to-peer updates, keep Windows Update and SmartScreen), turn off everything, or tweak individual settings. These aren't always clearly described, but clicking any item displays more details on what it does.
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Launching the program displays almost 50 options, organised into various categories: Security (telemetry, wifi sense, DRM), Privacy (Cortana, input personalisation, app permissions), Windows Update (disable peer-to-peer updates, disable automatic updates) and more.
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O&O ShutUp10 is a tiny portable tool which makes it easy to tweak Windows 10's many privacy settings.
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