If you haven't received the update yet, you can also click the blue 'Get Updates' button on the Library tab of the Microsoft Store to manually check for available updates for all your installed UWP apps.ĭell Inspiron 5584 * 64-bit Win 10 Pro v21H1 build 19043.1415 * Firefox v95.0.2 * Microsoft Defender v.5-0.4 * Malwarebytes Premium v4.5.0.152. To check, launch the Microsoft Store app, click the icon for your account profile, and go to App Settings | App Updates - Update Apps Automatically. Note that this patch for the Windows AppX Installer is normally delivered by the Microsoft Store, so if you haven't received this v5.0 update yet it might be because you have disabled automatic updating of installed UWP (Universal Windows Platform) apps in your Microsoft Store app. Go to Settings | Apps & Feature | App Installer | Advanced Options to see your current version number. This Windows AppX Installer vulnerability has been used in targeted attacks, but you should be protected if this app was patched to v5.0 on or around 1.

According to Microsoft's Windows AppX Installer Spoofing Vulnerability (CVE-2021-43890) this vulnerability affects Win 10 v1809 and higher and Win 11. To check if your PC is authorized, see Add a device to your Microsoft account.See Susan Bradley's 1 Tips for the Week – What About the AppX Vulnerability? and related discussion in the AskWoody forum for more information. Your PC isn't authorized to use Microsoft Store apps. You'll need to sign into the app with your Microsoft account. If updates for Windows were recently installed, you'll need to restart your PC before you can install apps from Microsoft Store. Your PC was recently updated, but wasn't restarted. You might see an app from Microsoft Store available on your PC, but not on another PC, or your Xbox. Microsoft Store automatically hides or blocks the purchase button on apps that are incompatible with your device. The app isn't compatible with your device. In addition, some apps and games aren't available in Microsoft Store, but can be downloaded from the publisher's site directly.

The app is no longer available. When an app is removed from Microsoft Store, it takes a little time for the app description page to get removed. Parents can use family settings to make sure that their child can't view or install apps that are inappropriate for their age. Check that you're signed in with the correct account. Microsoft family settings might be hiding apps. If you bought an app in one country or region and then you moved to another one, the apps you had might disappear. An app available in France might not be available in Germany. The app isn't available in your country or region. If you still cannot see the app you want, it may be because: Open the Store app and search for your app or game. Note: A blank command prompt window will open, and after about ten seconds the window will close and Microsoft Store will open automatically.

Microsoft store app installer