After the anniversary update I notice these services and was wondering if I really needed them, some are running. You can't disabled them through services and properties.
UserDataSvc_43ced
UnistoreSvc_43ced
WpnUserService_43ced
PimIndexMaintenanceSvc_43ced
I wouldn't mess with Microsoft services unless you really know what you are doing. I have those services with a different suffix. See http://servicedefaults.com/10/ for details as shown below.
UserDataSvc_43ced - Provides apps access to structured user data, including contact info, calendars, messages, and other content. If you stop or disable this service, apps that use this data might not work correctly.
UnistoreSvc_43ced - Handles storage of structured user data, including contact info, calendars, messages, and other content. If you stop or disable this service, apps that use this data might not work correctly.
WpnUserService_43ced - This service hosts Windows notification platform which provides support for local and push notifications. Supported notifications are tile, toast and raw.
PimIndexMaintenanceSvc_43ced - Indexes contact data for fast contact searching. If you stop or disable this service, contacts might be missing from your search results.
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