How to fix error code 191 – UWP apps cannot be installed

Some Windows 10 users have reported having problems installing Microsoft Store and UWP apps, including Adobe XD, a UWP app, in recent months. In today’s post, we’ll try to offer a solution to this problem.

In short, UWP (Universal Windows Platforms) apps — formerly Windows Store and Metro-style — are apps that can be used on all compatible Microsoft Windows devices, including PCs, tablets, smartphones, Xbox One, Microsoft HoloLens, and Internet of Things (IoT).

The UWP app is essentially this:

  • Security: UWP apps declare device resources and the data they access. The user must authorize this access.
  • Ability to use a common API for all Windows 10 devices.
  • Ability to use device-specific features and customize the user interface for different screen sizes, resolutions, and DPI of the device.
  • Available in the Microsoft Store on all devices (or only those you specify) running Windows 10. The Microsoft Store offers many ways to earn your app.
  • Can be installed and uninstalled without disrupting your device or causing your machine to “rot.”
  • Interesting: using dynamic thumbnails, push notifications, and user actions that interact with Windows Timeline and Cortana’s “Pick Up Where I Left Off” to engage users.
  • Programmed in C #, C ++, Visual Basic, and javascript. You can use XAML, HTML, or DirectX for the user interface.


What is the cause of error 191 ‘Can`t Install UWP Apps’

What is the cause of error 191 'Can`t Install UWP Apps'

Error 191 usually occurs in the following scenarios:

  1. Your login account does not have administrator privileges.
  2. The device does not meet the requirements for installing a UWP (Universal Windows Platform) application.  See the System Requirements section for more information.
  3. Your Windows installation could not suspend the installation of the UWP package.


To resolve error code 191 ‘Unable to install UWP applications’

To resolve error code 191 'Unable to install UWP applications'

Reset Microsoft Store
  1. Click Start, type cmd and press Enter to open a command prompt window.
  2. In the command prompt window, type the following command and press Enter.
    ws reset. exe
  3. Wait for the Microsoft Store to start.
Update Microsoft Store
  1. When the store opens, click the ellipse menu icon (…) in the upper right corner.
  2. Select Downloads and Updates.
  3. Click the Get Updates button in the upper right corner.
  4. When you click this button, the Microsoft Store is updated along with the other installed apps. Make sure that all apps have been successfully updated. If you want to download UWP apps, you can install the app installer.
  5. Reboot your computer after all app updates have been completed.

Now you will be able to install any UWP application without any problems.