Unfortunately I am not an IT, and I could not find anything that made sense to me. Key questions:
What is the System Event Notification Service, and why to I care?
Is this likely to be a hardware problem or a software problem?
If software, is there a straightforward repair process?
Thanks for any clarification. -- JCW2
NEXT DAY UPDATE: Now I am no longer able to log off from the Administrator account. Or rather, after doing so there is no option to log on as the same or some other user. There is no longer any logon screen presented!! I ran the Lenovo Hardware Scan, which reported no errors, but I'm still pretty worried. Since I can no longer seem to get access to my Standard User account, where all my email is, I'm unable to do business.
I ran the Lenovo Hardware Scan, which reported no errors, but I'm still pretty worried. I do have a fairly recent image backup of the entire HD, but I'm reluctant to use this draconian measure before simpler and less invasive solutions are tried. The problem is, I haven't found any... -- JCW2