I did some work on solving the PC problem, but am going to need some help. The following is an update I sent to the HP Forum.
This is taking me longer than I had hoped, but you certainly deserve an update pending a final solution or decision. I thank you for your interest and your time.
The problem is centered on a cold start, and is missing on a restart of a safe mode restart. On a safe mode restart (WIN 10) I got to a normal windows log in, it accepted normal log in, then an error message "This app can't open (Get Started can't open using Built In account. Sign in with different account and try again" . I could continue processing is safe mode, but do not know an alternate sign in to use.
The instructions for all procedures were very clear and precise. Unfortunately, I am going to have to get some help doing the System Restore. I will get back to you when we reach any conclusion on your suggestions. Thank you again for your efforts.