[SOLVED] Windows 10 Update KB5052077 & KB5051974 failing with Error 0x800f0922, with Latency Spikes due to ACPI.sys

[R4dio S1lence]

Hi,

I've been having problems to install windows updates since months ago (I think it started back in December/2024 or November/2024, tho these two are recent). At first I ignored, because most of the search results for the failure and conditions were pointing to problems with .NET Framework version shenanigans, and were stuff that "could be fixed on a later date".

Fast forward a few months, and these updates keep failing with the same error as always (0x800f0922), and no amount of troubleshooting helped me: disabling, restarting and then re-enabling .NET Framework; cleaning WU cache; checking disk drive health & running scan disk. And now I'm having problems with video and audio, with high latency spikes out of nowhere. After finding and running LatencyMon, it showed both the NVidia driver and ACPI.sys as causes of the spikes. Updating the video drivers (that were just two updates out of date, for less than two weeks), solved the Nvidia driver latency spike, but not the ACPI.sys. But with that, I managed to find this forum via a thread about ACPI.sys latency spikes, and managed to follow the first steps to troubleshoot the problem (the steps that are generic, and not specific to user).

DISM checkup showed no problems and SFC check showed no problems either, although I had to run it as soon as the computer started, otherwise it would give me an error message about a ready to install update preventing the check.

Follow attached the CBS folder along with the result from the ComponentsScanner program (Components Scanner showed no issues, and I allowed the upload request).

Please, let me know if more information is needed.

 

[Windows Update Bot]

Hi @R4dio S1lence,

Welcome to Sysnative Forums!

If you haven't already, please review the posting instructions here, and attach the requested log files. Without log files, our helpers will not be able to assist, and this will slow down fixing your machine.

If logs have been already been provided, our team of volunteers will analyse the provided log files to build a fix for your system. Please be aware that this may take several days from your initial post, due to the high volume of threads that we receive.


- Sysnative Windows Update Team

 

[Maxstar]

Hi and welcome to Sysnative,

Download the

Farbar Recovery Scan Tool and save it to your Desktop:

Download the 64 bit version: - Farbar Recovery Scan Tool Link

Warning: This script was written specifically for this system. Do not run this script on another system.

• Download the attachment fixlist.txt and save it to your desktop.
• Right-click on FRST.exe and select "Run as administrator".
• Press the Fix button.
• If for some reason the tool needs a restart, please make sure you let the system restart normally.
• When finished, a log called Fixlog.txt will appear in the same directory the tool is run from.
• Post the logfile Fixlog.txt as attachment in your next reply.

 

[R4dio S1lence]

Follow attached the Fixlog.txt

 

[Maxstar]

Please attempt to update again, if it fails attach a new new copy of the CBS logs.

 

[R4dio S1lence]

Sorry for the delayed response.
Both updates went through, and now updates are all green.
KB5052077 didn't went together with KB5051974 (maybe because it was optional, so I would've needed to apply it again), but after a reset for each, both went ok (plus, groceries arrived in the meanwhile, and not during download/installation/reset).

I'll keep observing the ACPI.sys latency issues to see if it keeps coming up or if these two were the cause. From what I understand of the forums, the ACPI.sys should be addressed on another sub-forum, correct?

If so, I'll mark this as Solved and keep monitoring, and later open another thread just for it (or try to troubleshoot myself). If not, I'll keep observing with LatencyMon and report here later.

Thank you so much! As soon as I get an income again, I'll be sure to donate.

 

[Maxstar]

Hi,

You're welcome. Glad to hear the issue with Windows Update has been resolved, and yes please start a new thread if you stil have latency issues.

And thanks cosidering a donation to Sysnative...