caption: Treat external storage devices as read-only
desc: |-
  Setting the policy to True prevents users from writing to external storage devices.

        Unless external storage is blocked, if you set ExternalStorageReadOnly to False or leave it unset, users can create and modify files of physically writable, external storage devices. (You can block external storage by setting ExternalStorageDisable to True.)
default: false
example_value: true
features:
  dynamic_refresh: true
  per_profile: true
items:
- caption: Disallow writing to external storage devices
  value: true
- caption: Allow writing to external storage devices
  value: false
owners:
- yamaguchi@chromium.org
schema:
  type: boolean
supported_on:
- chrome_os:54-
tags: []
type: main
