Windows Server 2019 domain-joined systems must have a Trusted Platform Module (TPM) enabled and ready for use.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-205848 | WN19-00-000090 | SV-205848r991589_rule | CCI-000366 | medium |
| Description | ||||
| Credential Guard uses virtualization-based security to protect data that could be used in credential theft attacks if compromised. A number of system requirements must be met in order for Credential Guard to be configured and enabled properly. Without a TPM enabled and ready for use, Credential Guard keys are stored in a less secure method using software. | ||||
| STIG | Date | |||
| Microsoft Windows Server 2019 Security Technical Implementation Guide | 2025-05-23 | |||
Details
Check Text (C-205848r991589_chk)
For standalone or nondomain-joined systems, this is NA.
Verify the system has a TPM and it is ready for use.
Run "tpm.msc".
Review the sections in the center pane.
"Status" must indicate it has been configured with a message such as "The TPM is ready for use" or "The TPM is on and ownership has been taken".
TPM Manufacturer Information - Specific Version = 2.0 or 1.2
If a TPM is not found or is not ready for use, this is a finding.
Fix Text (F-6113r355907_fix)
Ensure domain-joined systems have a TPM that is configured for use. (Versions 2.0 or 1.2 support Credential Guard.)
The TPM must be enabled in the firmware.
Run "tpm.msc" for configuration options in Windows.