Policy
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.
PackMicrosoft Windows
CategorySystem / Removable Storage Access
Policy ID
86c7e0f47ed4Internal name
CustomClasses_DenyWrite_Access_2Registry
Copy registry mappings
HKLM\Software\Policies\Microsoft\Windows\RemovableStorageDevices\Custom\Deny_Write\Deny_Write (enabled) = 1
HKLM\Software\Policies\Microsoft\Windows\RemovableStorageDevices\Custom\Deny_Write\Deny_Write (disabled) = 0HKLM\Software\Policies\Microsoft\Windows\RemovableStorageDevices\Custom\Deny_Write\List\Deny_WritePolicy notes
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.