How to diagnose strange semi-hanging of Windows 10

Hong 1,051 Reputation points
2020-07-29T15:32:28.877+00:00

A PC running Windows 10 Pro periodically (once or twice per month) suspends almost all programs. The mouse cursor still moves, but nothing happens upon clicking any button. The Task Manager was still running fine the last time it happened. The CPU usage was still updated. It was less than 10%.
I checked the Event Viewer and did not find anything abnormal around the time when it happened except logging completely stopped until the PC was rebooted.

Could anyone offer a tip on how to diagnose this?

Windows 10
Windows 10
A Microsoft operating system that runs on personal computers and tablets.
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  1. Dave Patrick 426.1K Reputation points MVP
    2020-07-29T15:34:43.72+00:00

    "except logging completely stopped"

    What application or process is this?