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WN11-00-000055 Alternate operating systems must not be permitted on the same system.

DISA STIG library V2R11
All changes in this version
first version loaded CAT II

Maps to CM-6 via CCI-000366

Title

Alternate operating systems must not be permitted on the same system.

Control

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.

Discussion

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

Related controls

CCI-000366

Fix

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