Windows Server 2025 domain-joined systems must have a Trusted Platform Module (TPM) enabled and ready for use.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-277993 | SRG-OS-000780-GPOS-00240 | WN25-00-000090 | SV-277993r1182250_rule | 2026-02-20 | 1 |
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 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.
ℹ️ Check
For stand-alone or nondomain-joined systems, this is not applicable.
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
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.