@Ed ant Thanks for your update.
Yes. We can check to see if Intune has enabled the built-in administrator account on the Windows devices using the following methods:
1.Windows Event Viewer
The event viewer IDs 813 and 814 indicate whether Intune has successfully enabled the built-in administrator account policy settings in event viewer > Applications and Services Logs > Microsoft > Windows > DeviceManagement-Enterprise-Diagnostic-Provider > Admin.
2.Windows Registry
In the registry editor, navigate to the below path.
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\PolicyManager\providers\AdministratorGUID\default\Device\LocalPoliciesSecurityOptions
We’ll see the Accounts_EnableAdministratorAccountStatus registry key with the value “1.” This confirms that we can use the Windows registry to check whether the administrator account was enabled as per the Intune policy.
Hope it will help.
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