Explorer for ArcGIS for Windows is built with Microsoft’s Universal Windows Platform (UWP). For information about UWP apps, see the following Microsoft documentation: What's a Universal Windows Platform (UWP) app?. Typically, you install UWP applications from the Microsoft Store.
However, if you can’t access the store, there is another option—sideloading. This allows you to install apps on Windows 10 devices without going through the Microsoft Store. Follow the steps below to install Explorer for ArcGIS via sideloading on your Windows 10 device.
Before you start, see which version of Windows 10 you have and make sure your device meets the minimum requirements. Explorer for ArcGIS for Windows requires Windows 10 version 1803 (OS Build 17134) or higher.
Enable Windows 10 for sideloading
By default, Windows 10 only allows you to install applications from the Microsoft Store. To install from other sources, you need to enable sideloading:
Click Update & Security > For developers.
Under Use developer features, select Sideload apps.
Launch the installer (Double click on .appxbundle file)
Click the Install button.
If you get an “App installation failed with error message: Install failed.” error (or something similar) while installing with App Installer following the steps above, you can try to install Explorer for ArcGIS with the Add-AppxPackage cmdlet using PowerShell.
To install Explorer for ArcGIS from PowerShell:
Run Windows PowerShell
Change to the directory where you extracted the installer after download.
Run this command (make sure to change the filename if installing a different version):