How to turn On or Off Smart App Control in Windows 11
Smart App Control in Windows 11 stops bad or untrusted programs from running on your PC. It acts like a security guard for your computer, checking every app before it starts.
This feature blocks software that might harm your files, slow down your PC, show too many ads, or install unwanted extra programs. It’s a key part of Windows 11’s built-in security, especially on newer devices.
Turning it on or off can help you manage which apps you can install and run.
Open Windows Security, navigate to App & browser control, then Smart App Control settings, and toggle the switch to ‘On’. If it’s in Evaluation mode, it’s already active and learning.
Smart App Control Modes
Windows 11 Smart App Control runs in different modes, including evaluation mode. In evaluation mode, Windows tests if Smart App Control suits your PC and does not block apps. If Windows decides Smart App Control is a good fit, it automatically turns on; otherwise, Windows turns Smart App Control off.
If Smart App Control blocks an app you need, you can’t simply tell it to allow that one app. Your choices are to turn off Smart App Control completely or ask the app’s creator to digitally sign their software. A digital signature is essentially a digital seal of approval that helps Windows confirm the app’s legitimacy and safety.
Smart App Control can be off if you turned Smart App Control off, if your device uses Windows in "S mode" (which requires switching out of S mode and resetting your PC), or if optional diagnostic data is turned off in Windows. To turn Smart App Control back on after it's off, and you do not have a clean install, you will likely need to reset or reinstall Windows and select "Send optional diagnostic data" during setup.
How to Turn Smart App Control On or Off Using Windows Security
The simplest way to turn Windows 11 Smart App Control on or off is by using the built-in Windows Security app. You can open Windows Security by searching for it in the Start menu or by clicking the shield icon next to your clock. This tool lets you easily control the security features on your computer.
- Open Windows Security. You can search for “Windows Security” in the Start menu or click the shield icon near your clock.
Tip: Press Windows key + I to open Settings, then go to Privacy & security > Windows Security. - Go to App & browser control. In Windows Security, click “App & browser control” on the left side.
- Find Smart App Control settings. On the right side, click the “Smart App Control settings” link.
- Choose your setting. You’ll see these options:
- On: Blocks untrusted or harmful apps.
- Off: Turns off Smart App Control.
- Evaluation mode: (May not always be visible.) Windows tests if Smart App Control is right for your system without blocking anything.
- Approve the change. If a box asks for permission (User Account Control), click “Yes.”



That’s it! You’ve changed your Smart App Control settings using Windows Security.
Manually Adjusting Smart App Control Using Registry Editor
Editing the Windows Registry is another way to adjust Smart App Control. Be careful; errors in the Registry Editor can sometimes cause system instability. If you’re not comfortable with this, use the Windows Security method instead.
Administrator rights are required for these steps.
Turning Smart App Control ON
- Open Registry Editor. Press Windows key + R, type
regedit, and press Enter. Click “Yes” if asked by User Account Control. - Go to the right location. In the Registry Editor’s address bar, type or paste this path and press Enter:
To turn ON Windows 11 Smart App Control using the Registry Editor, first open the tool by pressing Windows key + R, typing regedit, and pressing Enter. You'll then need to navigate to a specific location within the registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\CI\Policy. This advanced method requires careful steps.
- Close and restart. Close Registry Editor and restart your computer.
Setting Smart App Control to Evaluation Mode
- Open Registry Editor. Press Windows key + R, type
regedit, and press Enter. Click "Yes" on the User Account Control prompt. - Go to the right location. Navigate to this path in Registry Editor:
You can set Windows 11 Smart App Control to evaluation mode using the Registry Editor. Open Registry Editor by pressing Windows key + R, typing regedit, and pressing Enter. Then, go to the path HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\CI\Policy and look for the VAppEnforcementState DWORD value to make your changes.
- Close and restart. Close Registry Editor and restart your PC.
Turning Smart App Control OFF
- Open Registry Editor. Press Windows key + R, type
regedit, and press Enter. Click "Yes" to approve the User Account Control prompt. - Go to the right location. Go to this registry path:
To turn OFF Windows 11 Smart App Control, you can use the Registry Editor. Start by opening it with Windows key + R, typing regedit, and pressing Enter. Navigate to the registry path HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\CI\Policy and find the VAppEnforcementState DWORD (32-bit) Value to change its setting.
- Close and restart. Close Registry Editor and restart your computer.
Remember, the Windows Security app is the safer choice if you're unsure about using the Registry Editor.
Summary
Windows 11 Smart App Control is a security feature that blocks untrusted or potentially harmful applications from running on your PC. You can manage Windows 11 Smart App Control through the Windows Security app, choosing to turn the feature On, Off, or leave it in Evaluation mode for testing. Advanced users can also adjust settings via the Registry Editor with caution.
What happens if I turn off smart App control in 🪟 Windows 11?
Once the evaluation is complete, or if you manually switch Smart App Control on or off, you won't be able to return to evaluation mode unless you reinstall or reset Windows. On: Smart App Control will notify you when apps are untrusted. Apps trusted by the prediction model and/or with valid signatures will run.
How to turn smart App control back on in 🪟 Windows 11?
You can turn Smart App Control back on after the installation is complete. Recent Windows updates allow Smart App Control to be re‑enabled without requiring a clean installation. To open the settings, open Windows Security, then App and Browser Control, and select Smart App Control settings.
How do I turn on smart control on 🪟 Windows 11?
If you want to turn Smart App Control on, you'll need to reset this PC, or reinstall Windows, and select Send optional diagnostic data during the setup process.
How to turn off PC smart App control?
Open the Settings App. Go to Privacy and Security - Windows Security - App and Browser Control. Open 'Smart App Control Settings' and you can disable that form in there. However, before you do that, disabling Smart App Control will lower the security on your PC and it is not advised to disable that security setting.
Was this guide helpful?
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.
No comments yet — be the first to share your thoughts!