Windows 11 Pro - KB5053598 - Install error - 0x800f0991

CheekyElf

Member
Joined
Mar 15, 2025
Posts
9
Perhaps this is related to the update itself having some issues (it seems people are reporting instability with it).

I tried windows update troubleshooter but it fails to run "The Windows Update diagnostic failed to run".
I tried disabling and re-enabling .net windows features.
I tried sfc /scannow and DISM restorehealth, but restoring fails "Error: 0x800f081f The source files could not be found.", I then tried downloading an iso image from microsoft, picking the correct index for pro version as source with install.wim and still got the same error.
I tried resetting windows update components (following their official instructions, I don't think I can link it because of the spam filter though).

Finally, following the instructions for this post:

Code:
C:\Windows\System32>sfc /scannow



Beginning system scan.  This process will take some time.



Beginning verification phase of system scan.

Verification 100% complete.



Windows Resource Protection did not find any integrity violations.

Code:
C:\Windows\System32>Dism /Online /Cleanup-Image /RestoreHealth


Deployment Image Servicing and Management tool
Version: 10.0.26100.1

Image Version: 10.0.26100.1

[==========================100.0%==========================]
Error: 0x800f081f

The source files could not be found.
Use the "Source" option to specify the location of the files that are required to restore the feature. For more information on specifying a source location, see https://go.microsoft.com/fwlink/?LinkId=243077.

The DISM log file can be found at C:\WINDOWS\Logs\DISM\dism.log

Code:
Loading registry hive from C:\WINDOWS\System32\config\COMPONENTS

Hive is currently in use, making backup copy
Parsing loaded hive, please wait...
Sequence numbers do not match! Hive is dirty and the transaction logs should be reviewed for relevant data!
hbin header incorrect at absolute offset 0x3650000!!! Percent done: 99.66%
Hive parsed successfully - found 91,557 keys and 271,672 values
Starting corruption scan
Sequence mismatch! Primary = 6269. Secondary = 6268
Scanning CanonicalData\Catalog for corruptions
Scanning CanonicalData\Deployments for corruptions
Scanning DerivedData\Components for corruptions
Scanning VersionedIndex\...\ComponentFamilies for corruptions
Checking WinSxS catalogs against CanonicalData\Catalogs
Checking WinSxS components against DerivedData\Components
Checking f! marks
Checking manifests
Checking for malformed Deployment keys
Checking CatalogThumbprints & c! marks
Generating report
Archiving previous report C:\Users\host\Desktop\ComponentsScanner.txt to C:\Users\host\AppData\Local\Sysnative\ComponentsScanner\Reports\ComponentsScanner_03_16_2025_04_23_34.txt

The corruption scan completed after 28.28 seconds.

No corruptions were detected in the COMPONENTS hive.

Please note this tool is only able to detect certain corruptions and there may be problems that it is unable to find.
If you are experiencing issues with Windows Update or require further support, please visit Sysnative.com for
free advice.

Note: I restarted after running the commands to be able to zip the CBS folder, since the cbs.log file was still in use by TiWorker.
 

Attachments

Hi @CheekyElf,

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 and welcome to Sysnative,

The SFCFix.zip file is too big to attach, so I've uploaded it here: SFCFix.zip

Step 1. 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.


Step 2. 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
 
I did step 1 (which said something about failing to zip everything and upload at the end, which I assumed was fine since it asked about an optional online step at the start that I agreed to), and step 2 (which said "The restore operation completed successfully.").

Then I restarted, and tried to update again, and after waiting for it to download and install I got the same error, 0x800f0991.

Then I reran the initial post steps (sfc /scannow, dism restore, component scanner)

Code:
C:\Windows\System32>sfc /scannow

Beginning system scan.  This process will take some time.

Beginning verification phase of system scan.
Verification 100% complete.

Windows Resource Protection did not find any integrity violations.

Code:
C:\Windows\System32>Dism /Online /Cleanup-Image /RestoreHealth

Deployment Image Servicing and Management tool
Version: 10.0.26100.1

Image Version: 10.0.26100.1

[==========================100.0%==========================] The restore operation completed successfully.
The operation completed successfully.

Code:
Loading registry hive from C:\WINDOWS\System32\config\COMPONENTS
Hive is currently in use, making backup copy
Parsing loaded hive, please wait...
Sequence numbers do not match! Hive is dirty and the transaction logs should be reviewed for relevant data!
hbin header incorrect at absolute offset 0x361C000!!! Percent done: 99.74%
Hive parsed successfully - found 91,603 keys and 271,968 values
Starting corruption scan
Sequence mismatch! Primary = 7725. Secondary = 7724
Scanning CanonicalData\Catalog for corruptions
Scanning CanonicalData\Deployments for corruptions
Scanning DerivedData\Components for corruptions
Scanning VersionedIndex\...\ComponentFamilies for corruptions
Checking WinSxS catalogs against CanonicalData\Catalogs
Checking WinSxS components against DerivedData\Components
Checking f! marks
Checking manifests
Found 14 inconsistencies between WinSxS and COMPONENTS hive
Checking for malformed Deployment keys
Checking CatalogThumbprints & c! marks
14 warnings detected
Generating report
Archiving previous report C:\Users\host\Desktop\ComponentsScanner.txt to C:\Users\host\AppData\Local\Sysnative\ComponentsScanner\Reports\ComponentsScanner_03_19_2025_11_55_56.txt


The corruption scan completed after 30.11 seconds.
No corruptions were detected, but 14 warnings were found in the COMPONENTS hive.

If you are not experiencing issues with Windows Update, these warnings can likely be ignored.

A report has been saved to C:\Users\host\Desktop\ComponentsScanner.txt. Please review this report for more information.

If you require assistance repairing these warnings, seek advice from sysnative.com or your favourite support forum.

I uploaded latest CBS.zip and ComponentsScanner.txt again.
 

Attachments

Hi,

Please run the following command in an elevated prompt and copy and paste the result in your next post.
Code:
DISM /online /cleanup-image /AnalyzeComponentStore
 
Code:
C:\Windows\System32>DISM /online /cleanup-image /AnalyzeComponentStore

Deployment Image Servicing and Management tool
Version: 10.0.26100.1

Image Version: 10.0.26100.1

[==========================100.0%==========================]

Component Store (WinSxS) information:

Windows Explorer Reported Size of Component Store : 12.99 GB

Actual Size of Component Store : 12.26 GB

    Shared with Windows : 6.94 GB
    Backups and Disabled Features : 5.32 GB
    Cache and Temporary Data :  0 bytes

Date of Last Cleanup : 2025-03-23 05:24:42

Number of Reclaimable Packages : 0
Component Store Cleanup Recommended : No

The operation completed successfully.
 
Hi,

Export CBS (Component Based Servicing) hive
  • Click on the Start button and type regedit
  • When you see regedit on the list, right-click on it and select Run as administrator.
  • When regedit opens, using the left pane, navigate to the following registry key and select it by clicking on it once.
    Code:
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing
  • Once selected, click File > Export....
  • Change the Save as type: to Registry Hive Files (*.*).

    622dbef75cd3a-Export-CBS-hive.png

  • Name this file ComponentBasedServicing (with no file extension) and save it to your Desktop.
  • Right-click on the saved file and choose Send > Compressed (zipped) Folder.
  • Attach the .ZIP file to your next post.
  • If the file is too large to upload here, upload the file to www.wetransfer.com and post the link in your next reply.
 
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
  • Note: Your antivirus program may report FRST incorrectly as an infection. If so, disable the real-time protection when downloading and running FRST.
  • Right-click to run the tool as administrator. When the tool opens click Yes to disclaimer.
  • Note: Ensure that the Addition.txt check box is checked at the bottom of the form within the Optional Scan area.
  • Press the Scan button.
  • Please wait for the tool to finish. It will produce two logfiles called FRST.txt and Addition.txt in the same directory the tool is run from (which should be the desktop)
  • Post the logfiles FRST.txt and Addition.txt as attachment in your next reply.
 
Rich (BB code):
System errors:
=============
Error: (03/24/2025 07:00:03 PM) (Source: Microsoft-Windows-WindowsUpdateClient) (EventID: 20) (User: NT AUTHORITY)
Description: Installation Failure: Windows failed to install the following update with error 0x800f0991: 2025-03 Cumulative Update for Windows 11 Version 24H2 for x64-based Systems (KB5053598).

Error: (03/24/2025 06:19:05 PM) (Source: Service Control Manager) (EventID: 7000) (User: )
Description: The l1vhlwf service failed to start due to the following error:
A hypervisor feature is not available to the user.

Error: (03/24/2025 01:03:41 AM) (Source: Microsoft-Windows-DNS-Client) (EventID: 8048) (User: NT AUTHORITY)
Description: DNS-over-HTTPS request failed to obtain valid SSL certificate from server 45.90.28.79, with template https://dns.nextdns.io/bada8f, due to:  error loading the SSL libraries;. WinHTTP flags: 2147483648

Error: (03/24/2025 01:03:41 AM) (Source: Microsoft-Windows-DNS-Client) (EventID: 8048) (User: NT AUTHORITY)
Description: DNS-over-HTTPS request failed to obtain valid SSL certificate from server 76.76.2.2, with template https://freedns.controld.com/p2, due to:  error loading the SSL libraries;. WinHTTP flags: 2147483648

Please disable or uninstall the Forcepoint VPN Client and attempt to update again.
 
I had it disabled from the startup programs, but I went and uninstalled it, restarted, attempted to update and got the same error "Install error - 0x800f0991".
 
Hi,

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.
650c22f99662d-6190d993a26f3-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.
 

Attachments

KB5053598 Update failed again same error "Install error - 0x800f0991", but a Security Intelligence Update for Microsoft Defender Antivirus was completed if this is relevant.

I then ran sfc scannow and DISM restorehealth:

Code:
C:\Windows\System32>sfc /scannow

Beginning system scan.  This process will take some time.

Beginning verification phase of system scan.
Verification 100% complete.

Windows Resource Protection did not find any integrity violations.

Code:
C:\Windows\System32>DISM /Online /Cleanup-Image /RestoreHealth

Deployment Image Servicing and Management tool
Version: 10.0.26100.1

Image Version: 10.0.26100.1

[==========================100.0%==========================] The restore operation completed successfully.
The operation completed successfully.

and uploaded SFCFix.txt as well as updated CBS.zip here: Wormhole - Simple, private file sharing
 

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