I am a volunteer tech support in a senior community. I make visits to my clients. Last week my client asked for help with an Intel NUC that was suddenly doing random restarts (or returns to log in screen) during activity, that is, while she was reading email or working on documents. The setting for screen lock was 3 hours of no activity (not 20 sec!).
I am always suspicious that a Win update has done something weird like this, and indeed I found that it had updated from Win-10 to Win-11 24H2 without warning on 2/7, with a further security update on 2/17.
I searched for people complaining about this issue and found some from last year, but nothing recent. Seems there are 2 choices: roll back to Win-10 (there is a time limit on that I believe?) or wait for the next monthly update and hope it gets fixed.
I appreciate your advice.
thanks
Hilary