Error details

While installing or updating Creative Cloud apps using the Adobe Creative Cloud desktop app, you get Error code 506.

----------------------------------- Summary -----------------------------------

Failed to install UWP Appx package 
C:\adobeTemp\ETRDD91.tmp\1\SparklerApp\SparklerApp.appx 
with uwpcode 14(windows error details code = (-2147009281), 
error = (error 0x80073CFF: To install this application you need either a Windows 
developer license or a sideloading-enabled system.)
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Issue

This error occurs when sideloading is disabled on Windows, or the necessary permissions are not enabled.

Solutions

To fix this issue, follow these steps:

To enable sideloading:

  1. Click the Windows icon in the lower-left corner of the desktop and select Settings.
  2. In the Settings window, search for Developers settings.
  3. Within Developers settings, select Sideload Apps.
  4. Try to install the app from Creative Cloud desktop app. 

  1. Type regedit in Windows search.
  2. Navigate to HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Appx and change the value of AllowAllTrustedApps to 1.
  3. Proceed to install the app from the Creative Cloud desktop app. 

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