PUA protection is supported on Windows 11, Windows 10, Windows Server 2022, Windows Server 2019, and Windows Server 2016. Potentially unwanted applications can increase the risk of your network being infected with actual malware, make malware infections harder to identify, or cost your IT and security teams time and effort to clean them up. Evasion software that actively tries to evade detection by security products, including software that behaves differently in the presence of security products.įor more examples and a discussion of the criteria we use to label applications for special attention from security features, see How Microsoft identifies malware and potentially unwanted applications.Also, software that offers to install other software that qualifies as PUA. Bundling software that offers to install other software that is not digitally signed by the same entity.

Advertising software that displays advertisements or promotions, including software that inserts advertisements to webpages.The term PUA can also refer to an application that has a poor reputation, as assessed by Microsoft Defender for Endpoint, due to certain kinds of undesirable behavior. PUA is not considered a virus, malware, or other type of threat, but it might perform actions on endpoints that adversely affect endpoint performance or use. Potentially unwanted applications (PUA) are a category of software that can cause your machine to run slowly, display unexpected ads, or at worst, install other software that might be unexpected or unwanted.

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