Ouch!
This is getting decidedly compelling, especially as one contribution on this thread has already hinted at a November patch Tuesday update being a possible cause - apparently their beasty was fine until then.
The one I have been working on has exhibited this issue for approximately two months, as best my client can recall.
So, MVPs, do we have any internal wisdom on this? An issue linked explicitly to MOV files, by the look of it, as origin of files varies as does playback software. The common denominator sure is looking like Win 8.1 recent update.
Having said that, it seems this problem has been about since September at least - and my client is not renowned for keeping things up to date in a timely fashion - she may have installed updates in November that dated back a month or three; not a regular
user, has a live outside computing.
UPDATE:
Just found a thread on Technet covering this very issue. Mixed benefits with respect to fixes, some worked, some have not and it's suggested that a "bug" may have been reintroduced November.
https://social.technet.microsoft.com/Forums/en-US/abab222f-51b9-4068-af98-47339c0bb5f2/windows-81-file-explorer-crashes-repeatedly-with-iphone-movies-mov-files?forum=w8itproinstall
Current wisdom is the following updates are behind the issue, but removal does not always work. These guys are mostly using Pro version, so updates may not be applicable to basic versions; anyway, here they are - nothing to loose by trying. To quote i_Mike:
To fix the issue, I had to uninstall the following
updates:
KB2975719
KB2995388
EOQ ****Back to see if this works.... ****