How to Enable PUA Protection in Microsoft Edge
You enable PUA (Potentially Unwanted Application) Protection in Microsoft Edge to safeguard your PC from unwanted software that could harm your system.
PUA Protection is a built-in security feature within Microsoft Edge that actively blocks the download and execution of programs classified as Potentially Unwanted Applications. These applications, while not always malicious viruses, can degrade your PC’s performance, display intrusive ads, or install unwanted toolbars.
This protection works by checking files against a list of known PUAs. While it’s often enabled by default, knowing how to toggle it helps you manage specific software installations.
How to Turn PUA Protection On or Off in Edge
Step 1Open Microsoft Edge
Start the Edge browser on your computer.
Step 2 Go to Settings
Look at the top right corner. Click the three horizontal dots button (labeled “Settings and more”). Then click Settings. You can also press Ctrl+comma to open Settings directly.
Step 3Find Privacy Settings
On the left side panel, click Privacy, search, and services.
Step 4Change PUA Protection
Scroll down to the Security section. Find the setting that says Block potentially unwanted apps. Flip the switch to turn it On or Off.
Note: PUA Protection works alongside Edge’s SmartScreen feature. Both should remain enabled for comprehensive protection.
What happens? When you turn it on, Edge blocks unwanted programs. When you turn it off, Edge allows them.
Step 5Close Settings
You are done. Close the Settings page.
How to Control PUA Using Windows Registry
There is another way to manage PUA Protection. You can use the Windows Registry Editor. This method works for all users on your computer.
Step 1Open Registry Editor (Admin Required) %📂%SC0%copy%
Press ⊞ Win+R, type regedit and press Enter. Click Yes to run as administrator. You need admin rights for this step.
Step 2Navigate to the Edge Folder
Go to this location in the registry:
Computer\🗝️HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Edge
Step 3Find or Create SmartScreenPuaEnabled
Before editing the registry, click File > Export to create a backup of the current registry in case you need to restore changes.
Look at the right side panel. Find the item called SmartScreenPuaEnabled (REG_DWORD). Double-click it to open it.
If you do not see it: Right-click a blank area on the right side. Click New and then DWORD (32-bit) Value. Name it SmartScreenPuaEnabled.
Step 4Set the Value
Type 1 to turn PUA blocking on for everyone. Type 0 to turn PUA blocking off for everyone.
Step 5 Restart Your Computer
You may need to restart your computer for the changes to take effect.
What happens? These changes affect all users on your computer. The registry method is stronger than the browser settings.
To Go Back to Normal
Delete the SmartScreenPuaEnabled item you created. This restores the default setting.
General
For managed devices or organizations: PUA Protection can also be controlled via Group Policy. Check gpedit.msc under Computer Configuration > Administrative Templates > Microsoft Edge for centralized management.
Summary
PUA Protection in Microsoft Edge keeps unwanted programs off your computer. You can control it in two ways:
- Easy way: Use the Edge Settings menu under Privacy, search, and services.
- Advanced way: Use the Windows Registry Editor to change the SmartScreenPuaEnabled value (requires admin rights).
Most people should leave PUA Protection turned on. Turn it off only if you need to install a specific program that is blocked. Always be careful when disabling security features on your computer.
Additional security: Consider enabling Edge’s Enhanced tracking prevention and Tracking prevention features for comprehensive protection against unwanted content and tracking.
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About the Author
Richard
Tech Writer, IT Professional
Richard, a writer for Geek Rewind, is a tech enthusiast who loves breaking down complex IT topics into simple, easy-to-understand ideas. With years of hands-on experience in system administration and enterprise IT operations, he’s developed a knack for offering practical tips and solutions. Richard aims to make technology more accessible and actionable. He's deeply committed to the Geek Rewind community, always ready to answer questions and engage in discussions.
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