Instructions to enable or disable SmartScreen on Windows 10

Instructions to enable or disable SmartScreen on Windows 10

Basically, Windows SmartScreen is a tool and feature that checks the safety of a file or application that can cause harm on a Windows 10 system. This feature is built into Windows 8. When you run a file or an application. Application of unknown origin, Windows will block the application and display a screen asking if you are not running or running the application.

It can be said that this feature is extremely useful, but if many of these notifications appear when running the application, many people feel uncomfortable. So you can proceed to disable Windows SmartScreen on Windows 10.

Use App & Browser Control to disable SmartScreen

The easiest way to disable SmartScreen filter is to use the system settings menu, called “App & Browser Control” which can be accessed from the Start menu.

The option for SmartScreen is prominently displayed as “On” on the respective page. You just need to disable it to disable Windows Defender SmartScreen.

The option for SmartScreen is prominently displayed as “On” on the respective page

You will receive a Windows Defender warning: “SmartScreen for Windows Defender is off. Your device may be vulnerable ”. ( SmartScreen for Windows Defender is off. Your device could be vulnerable .) You can choose to dismiss the notification and temporarily change the flag flag from “warn” to “off” if you plan to install unknown files.

Choose one of two options “Warn” or “Block”

Alternatively, choose one of two options: “Warn” or “Block” under Check apps and files .

  • If you select “Warn” , SmartScreen will alert you when you try to open an application or file is not recognized.
  • If you select “Block” , SmartScreen will display warning message and block the file or application from running.

Use the Group Policy Editor

In addition to the easy default method above, let’s explore some system or network administration methods for alternative access to Windows Defender SmartScreen.

For system or network administrators, Windows has a specific policy setting in the Group Policy Editor to quickly disable the SmartScreen filter in Windows 10.

1. Open the Group Policy Editor by searching for “gpedit.msc” in the Start menu. In the Policy Editor , go to Computer Configuration> Administrative Templates> Windows Components> File Explorer .

2. Find and double-click the Configure Windows Defender SmartScreen policy.

3. In the policy settings window, configure it as follows:

  • To turn off the SmartScreen filter, select the Disabled option .
  • To enable the SmartScreen filter, select Enabled and choose Warn or Warn and prevent bypass in the Options section.
Enable / disable SmartScreen in Group Policy Editor

For the changes to take effect, reboot the system or execute the gpupdate / force command as admin.

Use Registry Editor

Windows 10 Home users will not have access to the Group Policy Editor. However, you can use Registry Editor to turn off the SmartScreen filter. You just need to create a few values. Before editing the Registry, make a backup of it.

1. Search for “regedit” in the Start menu and open it as admin. Go to the following location.


To turn off the SmartScreen filter, create a new DWORD value by choosing New> DWORD (32-bit) Value .

Name the value “EnableSmartScreen”. Double-click the newly created value and set the Value Data to 0 .

3. To turn on the SmartScreen filter, first set the Value Data of “EnableSmartScreen” to 1 .

Set the Value Data of “EnableSmartScreen” to 1

4. Now you need to set the SmartScreen blocking level. To do that, right-click on the right panel and choose New> String Value . Name the value as ShellSmartScreenLevel.

5. Double click on the new string value and set “Warn” or “Block” as the value data.

  • Warn: Displays a warning message, but you can ignore it.
  • Block: Displays warning messages and blocks you from running apps or files.

Once done, reboot the system.

Refer to some more articles below:

  • What is Developer Mode on Windows 10? How do I activate this mode?
  • Here’s how to uninstall Windows 10 to get back to using Windows 7 or 8.1
  • How do I get the Windows 10 Anniversary Update?

Good luck!