Fix Server 2022 Windows Update 0x800f0831 with CBS_E_STORE_CORRUPTION in CBS.log

The 0x800f0831 error message in Windows update is dreaded by many sysadmins! there are some well known fix’s such as the one noted in my post How do I reset Windows Update using Powershell? . Recently I have seen a number of servers where this well know process does not work. After much trial and error I now have the process below which works well. Note I developed this process on Server 2022.

Firstly take a look at the CBS log located at C:\Windows\Logs\CBS\CBS.log and search for the error ‘CBS_E_STORE_CORRUPTION’. If you find this then the process below may resolve your issue.

Check in the CBS logs for the string of text Failed to pin deployment which will highlight the missing component that is missing.

2024-05-10 04:04:37, Info                  CBS    Failed to pin deployment while resolving Update: Microsoft-Windows-DhcpServerRole-Package~31bf3856ad364e35~amd64~~10.0.20348.2227.DHCPServer from file: (null) [HRESULT = 0x80073701 - ERROR_SXS_ASSEMBLY_MISSING]

Microsoft-Windows-DhcpServerRole-Package is the name of the package that is missing.
10.0.20348.2227 is the version of the package that is missing.

Google the version . and it will tell you the Window Update it refers to e.g. version is 10.0.20348.2227 January 9, 2024—KB5034129 . Download the package from the Windows Update Catalogue

Expand the MSU file by the using the below at the command prompt which will output all the CAB files.

expand filename.msu .\temp -F:*

Expand the extracted CAB file for the update e.g. Windows10.0-KB5034129-x64.CAB

expand filename.CAB.\temp -F:*

This will export another CAB file with the same name as the one you extracted above. Expand this one as well. This will create a folder will all the update components. In this folder search for the package you are looking for.

Microsoft-Windows-DhcpServerRole-Package = Microsoft-Windows-DhcpServerRole-Package~31bf3856ad364e35~amd64~~10.0.20348.2227.mum

Now use DISM to install the missing component

dism /online /add-package /packagepath:Microsoft-Windows-DhcpServerRole-Package~31bf3856ad364e35~amd64~~10.0.20348.2227.mum

Rerun Windows Updates and it should complete this time successfully hopefully. Note thought you may have to go through the process a number of times if multiple packages are missing.