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Windows Server 2022 systems must have Unified Extensible Firmware Interface (UEFI) firmware and be configured to run in UEFI mode, not Legacy BIOS.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-254283 | WN22-00-000460 | SV-254283r991589_rule | Medium |
| Description |
|---|
| UEFI provides additional security features in comparison to legacy BIOS firmware, including Secure Boot. UEFI is required to support additional security features in Windows, including Virtualization Based Security and Credential Guard. Systems with UEFI that are operating in "Legacy BIOS" mode will not support these security features. |
| STIG | Date |
|---|---|
| Microsoft Windows Server 2022 Security Technical Implementation Guide | 2024-06-14 |
Details
| Check Text ( C-57768r848663_chk ) |
|---|
| Devices that have UEFI firmware must run in "UEFI" mode. Verify the system firmware is configured to run in "UEFI" mode, not "Legacy BIOS". Run "System Information". Under "System Summary", if "BIOS Mode" does not display "UEFI", this is a finding. |
| Fix Text (F-57719r848664_fix) |
|---|
| Configure UEFI firmware to run in "UEFI" mode, not "Legacy BIOS" mode. |