Custom Classes: Deny write access

This policy setting denies write access to custom removable storage classes.

If you enable this policy setting, write access is denied to these removable storage classes.

If you disable or do not configure this policy setting, write access is allowed to these removable storage classes.

Supported on: At least Windows Vista
Registry HiveHKEY_LOCAL_MACHINE
Registry PathSoftware\Policies\Microsoft\Windows\RemovableStorageDevices\Custom\Deny_Write
Value NameDeny_Write
Value TypeREG_DWORD
Enabled Value1
Disabled Value0

Enter GUID in format {xxxxxxxx-xxxx-xxxx-xxxxxxxxxxxx},

include brackets. Each custom GUID must be a separate entry

GUID for custom removable storage class:

Registry HiveHKEY_LOCAL_MACHINE
Registry PathSoftware\Policies\Microsoft\Windows\RemovableStorageDevices\Custom\Deny_Write\List
Value Name{number}
Value TypeREG_SZ
Default Value

removablestorage.admx

Administrative Templates (Computers)

Administrative Templates (Users)