CIS Microsoft Windows 10 Enterprise Release 1909 Benchmark

Audit:

Navigate to the UI Path articulated in the Remediation section and confirm it is set as prescribed. This group policy setting is backed by the following registry location:

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\FVE:RDVDiscoveryVolumeType

Remediation:

To establish the recommended configuration via GP, set the following UI path to Disabled :

Computer Configuration\Policies\Administrative Templates\Windows Components\BitLocker Drive Encryption\Removable Data Drives\Allow access to BitLocker-protected removable data drives from earlier versions of Windows

Note: This Group Policy path may not exist by default. It is provided by the Group Policy template VolumeEncryption.admx/adml that is included with the Microsoft Windows 7 & Server 2008 R2 Administrative Templates (or newer).

Impact:

Removable data drives formatted with the FAT file system that are BitLocker-protected cannot be unlocked on computers running Windows Server 2008 (non-R2), Windows Vista, Windows XPwith SP3 or Windows XPwith SP2. BitLockerToGo.exe will not be installed.

Default Value:

Enabled. (Removable data drives formatted with the FAT file system can be unlocked on computers running Windows Server 2008 (non-R2), Windows Vista, Windows XPwith SP3 or Windows XP with SP2, and their content can be viewed. These operating systems will only have read-only access to BitLocker-protected drives.)

References:

1. CCE-33071-2

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