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What is PUA?

Potentially unwanted apps - or PUA - are a type of app that may cause your device to run slowly, display unexpected ads, offer extra software you didn't want, or do other things you'd prefer they not do. 

Learn how to keep them off your device

Three intersecting bubbles with "Clean apps" in the leftmost bubble, "Malware" in the rightmost bubble, and "Potentially unwanted apps" in the bubble in between.

Explore security

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Stay secure with Windows

Windows makes it easier to stay secure with built-in protection using Microsoft Defender Antivirus.

Check out Windows Security

People at an airport checking their wireless devices.

Be safer over Wi-Fi

Most devices connect over Wi-Fi these days and that creates opportunities for attackers.

Learn to protect yourself

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Protect yourself from scams and attacks

Criminals are constantly trying to steal or trick you into revealing your personal information.

Learn to spot them

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Keep your PC up to date

Windows Update automatically installs the latest updates and security improvements.

Stay up to date

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Add an extra layer of security with Personal Vault

Protect your most important files, like your passport, driver’s license, or insurance information with OneDrive Personal Vault.

Meet Personal Vault

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