Ligtroom Classic constantly crashing in ‘Finding People’ mode – problem resolved

Lightroom classic started to crash constantly (within minutes) in ‘ Finding People’ mode.  Investigated problem in the usual way of adjusting/resetting preferences and catalogue settings, deleting and reinstalling Lightroom classic, creating a new small test catalogue of 700 images, but to no avail.  Ran Lightroom diagnostics, Event Viewer (/Windows logs/system), Task Manager for clues.  Noticed that ‘Finding People’ is a CPU-intensive activity (close to 100%).  Downloaded HWMonitor and discovered all CPU cores were running close to 100C.  Perused literature for solutions but thought it worthwhile to check grills on PC case.  Inlet grills were a series of small holes on both sides of the front panel and were partially/totally occluded.  A quick vacuum and re-ran ‘People Finder’ without problems on a catalogue of 25,000 files.  Noted CPU core temperatures were now running around 75C in a relatively warm room temperature of 30C.  I was surprised that so much dust had accumulated in the grills in a comparatively clean environment which was sufficient to affect the cooling of the CPU and the stability of the PC.  These observations may be a timely reminder for other users to check the grills of their PC cases for any obstructive dust accumulation.