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WU_E_UH_POSTREBOOTRESULTUNKNOWN
Meaning and context of WU_E_UH_POSTREBOOTRESULTUNKNOWN
There are numerous potential errors that a user may encounter when downloading and installing Windows updates.
When these kinds of errors occur, you may experience a number of things that can help you what steps you need to perform in order to resolve the problem. Here are symptoms, causes and probable resolutions to the problem.
While updating computer, user might suddenly experience a sudden slow processing or a download which fails to complete. The failing computer might also go into a sudden reboot, either a single instance of the computer shutting down or a continuous loop which prevents user to log into the computer. Error messages might also come up the screen.
What could have happened? Windows Updates are downloaded from Microsoft. File corruption may happen at any time when updates are downloaded due to different reasons. It may be because the previous update did not install properly. It can also be because there was a problem receiving the file, which may be due to problems with system files. Whatever the case may be, users can correct the problem by following these repair methods.
Official references
Distinctive failure point
This result identifies an update handler whose post-reboot result cannot be determined. Preserve Windows Update and servicing logs across the reboot, update identity, handler state, pending operations, reboot markers, and the first post-boot detection result.
Separating the result from neighboring bug checks
The correct next step is to establish whether installation committed, rolled back, or lost state; blindly reinstalling can obscure the original transaction.
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