Title

Alternate operating systems must not be permitted on the same system. (Cat II impact)

Discussion

Allowing other operating systems to run on a secure system may allow security to be circumvented.

Check Content

Verify the system does not include other operating system installations. Run "Advanced System Settings". Select the "Advanced" tab. Click the "Settings" button in the "Startup and Recovery" section. If the drop-down list box "Default operating system:" shows any operating system other than Windows 11, this is a finding.

Fix Text

Ensure Windows 11 is the only operating system on a device. Remove alternate operating systems.

Additional Identifiers

Rule ID: SV-253266r991589_rule

Vulnerability ID: V-253266

Group Title: SRG-OS-000480-GPOS-00227

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.