I don't think that this is causing the problem, but it does appear before the system shuts down (ESENT errors involving SRUJet database):
Stop the Diagnostic Policy Service
Rename C:\Windows\System32\SRU\SRUDB.dat to SRUDB.BAD
Then restart the Diagnostic Policy Service
The hope here is that the SRUJet database is corrupted - and by renaming it you will force the system to recreate a new copy that doesn't have the corruption.
Beyond that, I didn't see any other problems in the Admin logfile that might be related to the shutdowns.
Usually this is a possible symptom for a hardware problem.
Your UEFI/BIOS (version F11a) dates from 2013. Please check at the manufacturer's website to see if there are any UEFI/BIOS updates available for your system. If you are able to install the update through Windows (without booting from an external drive), then go ahead and update it. WARNING - if the computer might shut down during this procedure, please don't do it, as this may physically damage the computer and prevent it from booting.
FYI - W8 and W10 communicate more with the UEFI/BIOS than previous versions of Windows, so it's important to ensure that the UEFI/BIOS is kept up to date (and the outdated UEFI/BIOS' may be the cause of some compatibility issues).
Only 2 Windows Update hotfixes installed. Most build 16299 (1709/Fall Creators Update) systems have more than this. Please visit Windows Update and get ALL available Windows Updates.
The actual number is not important. Rather it's important that you checked manually, installed any available updates, and didn't experience any errors when checking or updating.
The rest of the reports that I looked at don't have much in the way of evidence either (this is suggestive of a hardware problem)>
The WER section of the MSINFO32 report does show a couple of Live Kernel Events - which may/may not be suggestive of a hardware problem.
Overall, I'd think that this was a hardware problem.
Have you monitored the temps as I asked in my previous post? If so, what were they?
Try leaving the side of the case open so you can see which fans are spinning rapidly.
Beyond that, please start with these free hardware diagnostics: http://www.carrona.org/hwdiag.html
Please finish ALL of them and let us know the results.
Then, if ALL of the tests pass, try this procedure to help isolate the problem device(s): http://www.carrona.org/strpdown.html
My browser caused a flood of traffic, sio my IP address was banned. Hope to fix it soon. Will get back to posting as soon as Im able. - John
(my website: http://www.carrona.org/
)**If you need a more detailed explanation, please ask for it. I have the Knack
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