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‎04-12-2026 07:39 AM

HP Recommended

error code in event viewer

Failed to process session change. System.NullReferenceException: Object reference not set to an instance of an object.
at HP.Watcher.WatcherEngine.FireEnrollmentCheckIfPresent()
at hptpsmarthealthservice.hptpsmarthealthservice.OnSessionChange(SessionChangeDescription changeDescription)
at System.ServiceProcess.ServiceBase.DeferredSessionChange(Int32 eventType, Int32 sessionId)

 

everything has been done. Redownloaded windows downloaded every piece of hp software possible and still nothing. I've tried everything and nothing works. Every single piece is up to date and downloaded. I have the z1 and only change is the GPU being a 5060 ti

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