Windows 10 Pro reboots on its own without updates in queue after KB4340917

Hello,

situation described in subject happened 2-3 times already since I installed the update on 4th. I believe, it didn't really happen before. What did happen before on 2 occasions was inability to restore from suspend. Then the system also rebooted after a short countdown on a BSOD.
I'm not sure where to look, I found a CLI command to print the reason for the latest reboot before, but I can't find it anymore.
I took a look into the "Event Viewer->Windows Logs->System" and couldn't find anything on the reboot between the time I went to bed and the time I woke up. However, there was a high noon entry "Information"-"Event Log", ID 6013. "The system uptime is 112158 seconds." It was definitely under 24 hours if the system indeed rebooted. It could have signed out, I'm not sure.

What could be causing the problem and what can I do?

P.S. Oops, never mind, I got it wrong, the system rebooted after high noon, after I left my home the first time today.
"The previous system shutdown at 1:22:53 PM on ‎8/‎10/‎2018 was unexpected."

There are a lot of log entries and I'm not sure which one could be useful or how I could export and upload the log file.
One of my disks is failing since a long time, most log entries pertain to it. It`s not a system disk and I long gave up on it. I don't think, that it could be causing this problem. I don't want to disconnect it, as a lot of work would be involved.

Regards


P.P.S. Sorry, I'm guessing, this is winding up in English on a German forum. Bug reports:

In Waterfox 56.2.2 (64-bit) I'm getting the error

Weiterlesen...

 

I just received some error messages about exception breakpoints in Pidgin and Waterfox. Had to reboot manually, not sure if similar problems caused the forced reboots.

I never had similar error messages before.

 

Hallo, hat dein Fehler vielleicht etwas mit diesen Updates gemeinsames ?*Augenzwinkern

https://support.microsoft.com/de-de/...-rollup-update

https://support.microsoft.com/de-de/...date-kb4340917

Gruß *Hallo!

 

Why did the original message end up incomplete?

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In Waterfox 56.2.2 (64-bit) I'm getting the error

{"ErrorMessage":null,"IsError":false,"Result":{"message":"Message must be 6 to 60000 characters long."},"Success":false,"CorrelationVector":null,"DependencyCorrelationVector":null}

Up until regards those were 1415 charactrers).

Edge cant enter answers.microsoft.com, when I enter it into the address field. I had to search for it with Bing. Then in switches into German and deleting "de-de" from the address field doesn't help. System language is English. I do speak German, but English
community is bigger and I don't want to rewrite my message (and I need help for what I have to do in the GUI in English, anyway).

Please forward to the English forum.

P.P.P.S. Why are there HTML tags creeping in into the message in Edge???

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Today the PC didn't recover from suspend, black screen for a long time ("no signal") and then BIOS/Logon screen. This also happened before the latest update a couple of times, this I forgot to mention

 

Hallo Morten,
dein Problem könnte im Zusammenhang mit dem hier "Zugriff verweigert"-Fehler und mit COM-Aktivierung nicht nach der Installation von Juli 2018 Sicherheit und Qualität Rollup Updates für.NET Framework stehen da Microsoft dieses Problem auch hier 24. Juli 2018 – KB4340917 (Betriebssystembuild 17134.191) erneut dokumentiert.

Zu dieser Aussage möchte ich dir dies hier Windows 10-Versionsinformationen noch zum lesen geben, gehe aber davon aus, dass du dich bei der Versionsangabe nur verschrieben hast.