[Bug] - Intel TDT Enabled - Seems to be not Available anyomore

[superko84]

Baseline Info

• OS: Windows
• Version: 26200.7922

Describe the bug
Following setting is causing error in EventViewer - Intel TDT Enabled to Enabled in policy Win - OIB - SC - Defender Antivirus - D - Additional Configuration - v3.6

Event Viewer - Application and Services Logs - Microsoft - Windows - DeviceManagement-Enterprise-Diagnostics-Provider will show following error:
MDM ConfigurationManager: Command failure status. Configuraton Source ID: (), Enrollment Type: (MDMDeviceWithAAD), CSP Name: (Defender), Command Type: (Add: from Replace or Add), CSP URI: (./Vendor/MSFT/Defender/Configuration/IntelTDTEnabled), Result: (Unknown Win32 Error code: 0x86000002).

When running Get-MpComputerStatus | Select TDTCapable, TDTStatus in PowerShell - result is empty.
TDTCapable TDTStatus

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When trying to set the value manually, following warning occurs:
PS C:\Windows\System32> Set-MpPreference -IntelTDTEnabled 1
WARNING:

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IntelTDTEnabled has been deprecated, this operation will perform no action

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To Reproduce
Steps to reproduce the behaviour:

1. Set the setting Intel TDT Enabled to Enabled in policy Win - OIB - SC - Defender Antivirus - D - Additional Configuration - v3.6
2. Wiat for policy sync
3. See error in EventViewer

Expected behaviour
No error in EventViewer. Setting applied.

[torkaberry]

I am also experiencing this error on every Dell device within the Tenant. We have removed that setting from our policy and awaiting replication.

[SkipToTheEndpoint]

I've experienced this myself and it looks like the setting may have been pulled from Defender and the Windows CSP but Intune not informed: https://www.reddit.com/r/DefenderATP/comments/1rakppp/intel_tdt_deprecated

Waiting for official confirmation but it's very likely I'll be removing this setting.