Error 0x800f0983 with latest cumulative update

H

HapaxOromenon

Member
Joined
Nov 3, 2018
Posts
98
After a long time, hi again all...

I've been getting repeated 0x800f0983 (i.e. file not found) errors when trying to install the latest Win11 CU (KB5058411) over the past several days. Running DISM reached 100% but then also gave a "source files not found" error. Checking the CBS log revealed that the 2 missing/corrupt files were amd64_microsoft-windows-appx-alluserstore_31bf3856ad364e35_10.0.26100.1591_none_bf9664dda7faf7cf\AppxAllUserStore.dll and the same with amd64 replaced by wow64. So I was able to download a Win11 ISO, extract those folders from the install.wim, and then point DISM to them with the /source argument, enabling it to run successfully this time. After that, SFC found no integrity violations, but trying to install the CU still fails with the same error code, and at this point trying to further analyse the CBS log is well beyond my own limited knowledge of this area. So any assistance would be much appreciated, and I've attached the logs requested in the sticky (which seem to have changed since when I was last here - I assume ComponentsScanner is the new SFCFix?). I can also provide a ProcMon trace if needed.

Thanks very much in advance!
 

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Hi @HapaxOromenon,

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
 
Hi,

Upload your COMPONENTS hive.
  • Navigate to C:\Windows\System32\Config and locate the COMPONENTS file.
  • Please copy this file to your desktop.
  • Note: If you receive an error that this file is in-use, simply reboot your computer and try again.
  • Right-click on this file on your desktop and select Send To > Compressed (zipped) folder. This will create a file named COMPONENTS.ZIP on your desktop.
  • If the file is too large to upload here, upload the file to www.wetransfer.com and post the link in your next reply.
 
Hi,

Download
67139f7e69a58-SFCFix-ico.PNG
SFCFix and save it to your desktop.

Warning: This fix was written specifically for this system. Do not run this fix on another system.
  • Save any work you have open, and close all programs.
  • Download the attachment SFCFix.zip and save it to your desktop.
  • Drag the SFCFix.zip file over the SFCFix.exe executable and release it.
67139f52b3c1e-SFCFix-Zip-Eng.gif

  • SFCFix will launch, let it complete.
  • Once done, a file will appear on your desktop, called SFCFix.txt.
  • Post the logfile (SFCFix.txt) as attachment in your next reply.

Afterwards attempt to update. If it fails attach a new copy of the CBS logs.
 

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Thanks very much for your quick reply (and as I said in the OP, I thought SFCFix was no longer in use, certainly on Win11...). I got an 0x800f0991 error when attempting to update again.

The SFCFix log and my CBS folder are attached.
 

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SFCFix is still being used but not for a standard scan.

Rich (BB code): 
2025-06-08 13:46:16, Error                 CBS    Failed to process single phase execution. [HRESULT = 0x800f0991 - PSFX_E_MISSING_PAYLOAD_FILE]

Please run the following DISM command and post the result. If it fails attach a new copy of the CBS log.
Code: 
DISM /online /cleanup-image /RestoreHealth
 
Ah, I see ... the last time I was a regular on here, people mostly seemed to use FRST for these file replacements/registry fixes.

DISM took hours to run, but finally completed successfully. However, when I tried updating again, I still got 0x800f0991, so I've attached my CBS folder.
 

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Looking at the latest logs, the preview update KB5058499 is causing issues is this also the update which results in Error 800f0991?
 
Yes - Settings -> Windows Update says "2025-05 Cumulative Update Preview for Windows 11 Version 24H2 for x64-based Systems (KB5058499): Install error - 0x800f0991".
 
Okay, I would suggest to skip / avoid all the preview updates in the future because they may contain bugs and may causing more issues than the regular updates released on pacth Tuesday!

Download the
577bf0efb8088-FRST.png
Farbar Recovery Scan Tool and save it to your Desktop:

Download the 64 bit version: - Farbar Recovery Scan Tool Link
  • Open the startmenu and type the command cmd.
  • After you find the Command Prompt, right click on it and select Run as Administrator.
  • Copy and paste the following into the Command Prompt and press enter.
Code: 
reg load HKLM\COMPONENTS C:\WINDOWS\SYSTEM32\CONFIG\COMPONENTS
Right-click on the file FRST64.exe and choose Run as administrator.
  • Copy and paste the following (code) into the Search box and click the Search Registry button.
Code: 
KB5058499
  • When the scan is complete, a message will display that SearchReg.txt is saved in the same folder FRST was started from.
  • Post the logfile SearchReg.txt as attachment in your next reply.
 
This is going to be a very difficult problem, below just one of the 127 errors?!

Rich (BB code): 
2025-06-08 18:21:57, Error                 SXS    No deltas found for wini3c.inf.Resources, version 10.0.26100.1, arch amd64, culture [l:5]'en-US', nonSxS, pkt {l:8 b:31bf3856ad364e35} Filename: WinI3C.inf_loc. Attempt to hydrate back to non-RTM baseline failed as well.: 800f0991 [Error,Facility=(000f),Code=2449 (0x0991)]

You can wait for the upcoming update (LCU) which will be released tomorrow I guess to see if it will resolve this issue, when that update also fails with the same error please let me know.
 
Looks like it tried again today to install the preview update (KB5058499), and got another 0x800f0991. Settings -> Windows Update -> Update History shows no sign of an attempt to install today's LCU (KB5060842), so I'm downloading it now from the Microsoft Update Catalog, and will see if it installs manually.
 
Trying to install KB5060842 manually almost immediately gave an 0x800f0838 error from Windows Update Standalone Installer. My CBS folder is attached.
 

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Hmm, 7-Zip seems to have started giving intermittent 'out of memory' errors, so that probably has something to do with it...

So I've tried with the Windows native archiver, and hopefully the attachment will now be readable.
 

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