The RPC Server Is ...

[Gingerfan]

Afternoon folks. I have a Dell 7760 XPS 27 inch AIO which is only 15 months old. Everything has been fine up until a MS(?) update roughly a week ago. It was a long update although not being overly tech-smart here, I'm not sure why or what the update was. However, a day or 2 later and kaput, unable to log on. Just keeps restarting saying " Windows Has Encountered An Error And Will Restart In One Minute" and then, it shuts done and attempts to restart. Early on, when this first happened, I saw somewhere on my screen "The RPC Server Is Unavailable". Then, for the first time in all my years of owning computers, I saw 2 keys, gold and silver, in the lower left of my task bar AND a padlock in the lower right of my task bar. Also, at one point I saw, "Failed to connect to a Windows service ... Windows couldn't connect to the SENS service ... This problem prevents standard users from signing in. As an administrative user, you can rev ......." and that's all the was in that pop-up. It tailed off there. I have NO idea what's going on but this was an expensive machine (over 2K) and I have only gotten 15 months out of it before it dies on me?? Any one have any ideas here? What is this "RPC Server" and this "SENS service." It appears I am locked out of my desktop pc but have no idea what to do. I can't get on to try any ideas/repairs. I get to the sign-in page, I enter my password, it starts to act normal and goes to my desktop page and then, the aforementioned "Windows Has Encountered An Error And Will Restart In One Minute" and, off it goes. Within a few seconds. No time to try anything. Why do I think this has something to do with the latest Windows update AND, if so, how can I fix this?

Thank very much for any/all help. ... Gingerfan