Computer Configuration > Administrative Templates > Microsoft Edge
Both
HKLM\Software\Policies\Microsoft\Edge
This policy configures the on-device real-time video translation feature in Microsoft Edge. With this feature, users can watch videos translated into their selected language in real time. When a user selects the Translate icon and chooses a source (video language) and target language (translated language), translation components are downloaded on first use (approximately 200 MB per language pair). These components may be updated periodically to improve performance and translation quality. Translation is performed locally on the user’s device and no data is sent outside of the device. The feature is available only for non-DRM videos, on supported high-end devices, with select language pairs, and in select regions. For more details, see https://www.microsoft.com/en-us/edge/features/real-time-video-translation. If you enable or don’t configure this policy, the on-device real-time video translation feature is enabled and users will see the Translate button when hovering over videos. If you disable this policy, the on-device real-time video translation feature is disabled and the Translate button won’t be shown.