You can disable Smart App Control from the Windows Security settings, but once you turn it off, Windows 11 currently won’t let you turn it back on without a reset or a newer Insider build that changes this behavior. Below is a detailed, blog-style guide in a friendly professional tone.

What is Smart App Control?

Smart App Control (SAC) is a Windows 11 security feature that blocks untrusted or potentially malicious apps before they can run on your PC.

It uses reputation data and code-signing checks to decide whether an app should be allowed, evaluated, or blocked.

  • It is only fully available on clean installs of Windows 11 22H2 or later, not on machines upgraded from Windows 10.
  • SAC runs in three main states: On , Evaluation , and Off , which you can see in its settings.

Quick Steps: How to Disable Smart App Control

Here are the standard steps most users follow to turn SAC off in Windows 11.

  1. Press Windows + I to open Settings.
  1. Go to Privacy & security in the left sidebar.
  1. Click Windows Security → App & browser control.
  1. Under Smart App Control , select Smart App Control settings.
  1. Choose Off to disable Smart App Control.

Once you confirm, SAC will be turned off and will stop blocking untrusted apps.

Important Warning Before You Turn It Off

Disabling Smart App Control reduces one layer of protection, so it’s worth knowing the trade‑offs.

  • Once SAC is turned Off on stable builds of Windows 11, it traditionally cannot be turned On again without resetting or reinstalling Windows.
  • SAC is designed to protect against unknown or unsigned apps that traditional antivirus might not flag immediately.

If you frequently install tools from smaller developers or older utilities, SAC can be annoying, but it also catches suspicious installers and scripts.

Advanced Method: Turn It Off via Registry (Power Users)

Some admins and advanced users prefer to flip SAC using the Registry for scripting or mass deployment.

Only do this if you are comfortable editing the Registry. Wrong changes can destabilize Windows.

Registry path and value (simplified):

  • Path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\CI\Policy
  • Value name: VerifiedAndReputablePolicyState (DWORD).

Typical values reported:

  • 0 → Smart App Control Off.
  • 1 or 2 → Smart App Control On / Evaluation (depends on configuration).

A common approach is to create a .reg file like this to turn SAC Off :

reg

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\CI\Policy]
"VerifiedAndReputablePolicyState"=dword:00000000
  • Save it as Turn_OFF_Smart_App_Control.reg, then double‑click it and accept the prompts to merge.
  • Restart Windows to make sure the change is fully applied.

Can You Re‑Enable It After Turning It Off?

On current stable Windows 11

On mainstream Windows 11 builds, Microsoft’s design means that once Smart App Control is turned Off , re‑enabling it normally requires a Reset this PC or a clean reinstall.

  • You go to Settings → System → Recovery → Reset this PC to perform a reset.
  • After reset, SAC returns to Evaluation mode and can then be turned On again through its settings.

This is a major reason many users hesitate before permanently disabling SAC.

Newer Insider builds (late 2025 change)

Recent Insider builds of Windows 11 reportedly let you turn Smart App Control on or off without needing a full reinstall or reset , making it a lot more flexible.

This change is being tested in Dev/Canary Insider channels and may not yet be available on all stable systems.

Forum & “Real World” Discussion

Community discussions and guides often highlight a few recurring themes around SAC:

  • Many users disable SAC because it blocks niche utilities or unsigned tools they trust.
  • Admins like SAC conceptually but are frustrated by the “one‑way” nature where Off is effectively permanent without a reset.
  • Tech blogs and support forums recommend keeping SAC on for non‑technical users and only turning it off when you understand the security implications.

In late 2025, tech news and Windows‑focused sites noted that Microsoft is reacting to this feedback by testing easier on/off toggling in Insider builds, which is a trending talking point among Windows enthusiasts.

Practical Safety Tips After Disabling SAC

If you decide to disable Smart App Control, compensate with safer habits.

  • Keep Microsoft Defender or another reputable antivirus active and updated.
  • Only download software from trusted vendors, official stores, or long‑standing reputable sites.
  • Be cautious of unsigned installers, “cracks,” or tools from random forum links.

For many power users, a combination of good security hygiene plus Defender is acceptable, but SAC offers an extra safety net that casual users might benefit from.

Simple HTML Table: States of Smart App Control

html

<table>
  <thead>
    <tr>
      <th>State</th>
      <th>What it means</th>
      <th>How you get there</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>On</td>
      <td>Blocks untrusted or suspicious apps before they run, using reputation and signing checks.[web:5]</td>
      <td>Enable via Smart App Control settings on a supported clean install of Windows 11.[web:1][web:5]</td>
    </tr>
    <tr>
      <td>Evaluation</td>
      <td>Observes how you use apps to decide if SAC should stay On; may not block everything yet.[web:1][web:5]</td>
      <td>Default after a clean install or reset; Windows monitors behavior before committing to On or Off.[web:1][web:5]</td>
    </tr>
    <tr>
      <td>Off</td>
      <td>Smart App Control is disabled and no longer blocks untrusted apps.[web:1][web:5]</td>
      <td>Manually turned Off in settings or via Registry; on stable builds, requires a reset to re-enable.[web:1][web:5]</td>
    </tr>
  </tbody>
</table>

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Learn how to disable Smart App Control in Windows 11, what happens after you turn it off, and why recent Insider builds finally let you toggle it without reinstalling Windows.

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