Windows 10: occasional restarts

My Windows keeps restarting, and I'm getting this in the Event Viewer.Windows Hello for Business provisioning will not be launched. Device is AAD joined AADJ or DJ++ : Not Tested User has logged on with AAD credentials: No Windows Hello for Business policy is enabled: Not Tested Windows Hello for Business post-logon provisioning is enabled: Not Tested Local&nb

:)

 

Hard drive/ OS issue

a guy suggested :

• shutdown
• unhooked HDD
• restarted
• yay !!
• reconnected HDD
• restarted
• yay !!

also , try method 3
How to Unlock Drive in Windows 10: 5 Ways to Remove a Lock

 

Inexplicable restarts

Thanks for your patient help and analysis, zbook. I'll step through some of your suggestions over the next few days - there's a lot to do and some look a bit hairy! That is, for a PC that is working sweetly right now...

Meanwhile, as requested in the BSOD thread (sorry, I misunderstood and posted there by mistake), I've attached both ZIP files.
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One step I did try right away was to answer your question about whether my BIOS is up-to-date. I had no success at the AMI site but did get some info from this commercial site:





It was one of the '9' (I counted 10) listed here:





Terry, East Grinstead, UK

 

Occasionally "Microsoft print to pdf" creates empty files

Have already done all of the steps suggested in that link.
The problem only happens occasionally; maybe two or three times a day.
Happening on several PC's, the only way to catch it before it goes to customers is the size of the file created.
If it is 0 or 1kb, it's a blank document.
Microsoft Print to pdf was working fine until about two weeks ago.
Thank You