Select the Windows search bar on the desktop and search for Developer settings.
Last updated on
12 February 2026
Learn how to resolve error code 506 "Install policy failure" during Adobe app installation on Windows.
Error code 506 indicates that sideloading is disabled or that necessary permissions are not enabled. To fix the error, work through the following solutions sequentially, proceeding to the next, if necessary.
Sideloading isn't enabled on your device
Enabling sideloading allows installation of trusted apps outside the Microsoft Store.
On the For developers settings, enable Developer Mode.
Try installing the app again using the Creative Cloud desktop app.
Note
If Developer Mode is greyed out, you might need administrator permission to change this setting.
App installation settings aren’t enabled on your device (Group policy)
If installation policies are restricted through Group Policy, enable trusted app installation settings:
In Windows search, type gpedit.msc and press Enter.
In the Local Group Policy Editor window, navigate to Computer Configuration > Administrative Templates > Windows Components > App Package Deployment.
In the right pane, double-click Allow all trusted apps to install.
Select Enabled, then OK.
Reopen the Creative Cloud desktop app and install the app again.
Windows registry doesn't have Trusted Apps enabled
If Group Policy is unavailable, enable Trusted Apps in the registry.
In Windows search, type in regedit.
In the Registry Editor window, copy and paste HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Appx in the search bar.
Select File > Export to back up your registry.
Select Save to create the backup copy of your registry file.
Note
If something goes wrong, you can restore the registry using the backup copy.
Locate AllowAllTrustedApps and set its value to 1.
Install the Creative Cloud app again.
