Windows 10 V1903: Update KB4507453 causes Reboot-Notification loop

[German]Microsoft has released update KB4507453 for Windows 10 May 2019 Update (Version 1903) on July 9, 2019. The update forces some systems into a 'reboot notification' loop. In other words: Although the update has been successfully installed, the user is told to restart again to install the update. There are may workarounds. Here is some information about what I've found so far.

Update KB4507453 for Windows 10 Version 1903

Cumulative Update KB4507453 raises the os build to 18362.239 and is available for Windows 10 Version 1903 as well for Windows Server Version 1903. Microsoft claims to have made a number of improvements and fixes with this update. Mention is made of mixed reality, Bitlocker issues and also bugs in the Wi-Fi connection in connection with Microsoft Edge, Internet Explorer or Office. In addition, the cumulative update addresses some vulnerabilities in the following components:

Windows Wireless Networking, Microsoft Scripting Engine, Windows Server, Windows Storage and Filesystems, Windows Kernel, Microsoft HoloLens, Internet Explorer, Windows Input and Composition, Windows Virtualization, Windows App Platform and Frameworks, Microsoft Graphics Component, Microsoft Edge, and Windows Cryptography.

Update KB4507453 repeats Restart notifications

A German blog reader left a comment for my blog post Patchday Windows 10-Updates (9. Juli 2019) an mentioned a 'restart notification loop':

Error with Win 10 V1903: Endless restart notifications that continue to be displayed even after a restart

This looks as if the update is being installed, but this installation cannot be completed successfully. Something is stuck. Could have been an isolated case now. But Bolko referred in his comment to user feedback at Win Future, where the bug is also reported by users:

1ST1: Just updated Win 10 V1903. After the reboot another reboot another reboot another…

@1ST1: If you mean the notification that you should restart, yes, it's the same with me. Don't get rid of the part.

The bug doesn't affect every user of Windows 10 version 1903. I did not have this behavior on my test system. Then I searched the web and found mentions on other websites as well. On German site deskmodder.de users reported the same issue:

Is there a general issue with the reboot notifications? Now I actually get a notification at every start/restart/login that the device should be restarted outside the usage time because updates have to be installed. Just don't get rid of it. Keep coming back. Is that only the case with me?

We have had this behavior, if SSUs are not updates, so two install loops has been necessary. But that seems not the case within the behavior outlined above. It seems, that it's just a notification thing. 

A possible workaround

Perhaps this recurring restart notification is simply due to an implementation error. User Janami25 writes in an answer to deskmodder that he was able to fix this by taking the following approach:

I had exactly the same "problem" with updating to 18362.207 on all machines. The text kept coming from the Info Center. I start again and again via the Start button, but then the message came again and again. When I clicked on Now restart on the Info button itself (bottom right in the taskbar), the message disappeared after the next boot process. On both computers.

I did the same with the current update 18362.239, and there is no "reminder" for restarting. It shouldn't really matter if you click on "Restart" in the Windows update, or via the start menu, or just click on the button of the Notification Center.

Seems that it was a problem located within the Notification Center. But I have no clue, what is causing that on some machines, whilst the other doesn't have that issue. Maybe a third part antivirus software has an influence.

Also a new update seach could help

I mentioned that issue to the folks at German site heise and got a feedback from Jan Schüssler – who also came across the topic. Jan wrote:

My impression is that this is a presentation issue. On all my systems there is still a message after the restart initiated from an update, telling me, that the system has to be restarted because of an update. The message disappears if you check once for more updates in Windows Update. Only then Windows "understands" that there are no more updates in the pipeline, that needs a restart and removes the message.

Jan suppose, that the notification should also disappear, if you the user wait until Windows has checked for updates in the background. But sometimes it can take hours.. So my question: Is somebody else affected?

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