uac settings windows 10

This App Can’t Open While UAC is Turned Off

When you try to open some modern application using local Windows account in Windows 10 or Windows 8.1 sometimes you can get an error related to UAC: This application can’t be activated when UAC is disabled or This app can’t open. Application can’t open while User Account Control is turned off. The message looks like this:

uac account control

This means that Windows can’t start any modern (metro) apps when UAC is turned off.

How to Fix This App Can’t be Activated When UAC is Disabled error?

To resolve the problem you need to enable User Account Control or switch to your Microsoft Account. You can enable UAC and solve this problem in several ways:

Enable UAC Using Control Panel Slider

Open Control Panel and go to section Control Panel\System and Security\Security and Maintenance -> Change User Account Control settings.

Move the slider from the bottom position to one of the top three. It is more secure to select the default value – Notify me only when apps try to make changes to my computer.

uac control settings

Enable UAC Through Group Policy

The second way to enable UAC is to use Group Policy. Open Local Group Policy Editor console (gpedit.msc) and navigate to the section Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options. Enable the policy named User Account Control: Run all administrators in Admin Approval Mode.

user account control

Enable UAC Through the Registry

The third way to enable User Account Control in Windows is to edit the registry.

Open Registry Editor (regedit.exe) and navigate to the following registry branch: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System

Find the registry Dword parameter EnableLUA and change its value to 1 (in case this parameter does not exist, create it manually).

enable lua uac settings windows 10

Reboot your computer and try to run Modern app as usual. It should start normally!

If for some reasons you can’t enable User Account Control, you can switch to your Microsoft Account and run metro apps even when the UAC is disabled.

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