Update policy override default

Specifies the default policy for software updates from Google. Can be overridden by the "Update policy override" for individual applications. Options: - Always allow updates: Updates are always applied when found, either by periodic update check or by a manual update check. - Manual updates only: Updates are only applied when the user does a manual update check. (Not all apps provide an interface for this.) - Automatic silent updates only: Updates are only applied when they are found via the periodic update check. - Updates disabled: Never apply updates. If you select manual updates, you should periodically check for updates using each application's manual update mechanism if available. If you disable updates, you should periodically check for updates and distribute them to users. Only affects updates for Google software that uses Google Update for updates. Does not prevent auto-updates of Google software that does not use Google Update for updates. Updates for Google Update are not affected by this setting; Google Update will continue to update itself while it is installed. WARNING: Disabing updates will also prevent updates of any new Google applications released in the future, possibly including dependencies for future versions of installed applications. This policy is available only on Windows instances that are joined to a Microsoft® Active Directory® domain.