How to block potentially harmful apps on Windows 10

How to block potentially harmful apps on Windows 10

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The Windows 10 May 2020 Update includes a new feature to protect against potentially unwanted apps. Here's how to turn it on.

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Windows 10 automatically blocks “potentially unwanted programs”

In Windows 10, starting with the May 2020 Update (version 2004), Windows Security introduces a new feature to protect your system from unwanted apps, in addition to Microsoft Defender Antivirus, which protects your device and files from viruses, ransomware, spyware, and other forms of malware.

The feature is called Potentially Unwanted Application (PUA) Blocking. Once enabled, it can detect and block apps with a bad reputation that can cause unexpected behavior in Windows 10, such as poorly designed apps or apps designed to cause harm.

This guide shows you how to enable (or disable) protection from potentially unwanted apps using the Windows Security app in Windows 10.