Still having install issues with KB5087539 on Windows Server 2025

I'm running into similar issues with this update. Getting to 93% and then it fails. I started a post here as well incase either of us find the solution.

Issues Installing Security Update KB5087539

Hello BrianO, thank you for posting in the Microsoft Q&A community.

Based on the logs you shared, The DISM package manager is failing with the error code 0x800f0982 across multiple processes, including CMsuPackage::ProcessMsu and CPackageManagerCLIHandler::ExecuteCmdLine. This error translates to PSFX_E_MATCHING_COMPONENT_NOT_FOUND. This specific error means that the Windows Update engine cannot find a required component in the Windows Component Store (WinSxS) to apply the update payload. The root causes for this are typically corrupted Language Pack configurations, a corrupted servicing stack, or residual files from incomplete previous updates that are blocking the current installation.

To isolate the issue, please first verify the integrity of the Component Store and attempt to repair any missing links. Open Command Prompt as an Administrator and run the following commands sequentially to clean up and restore the system image:

DISM /Online /Cleanup-Image /StartComponentCleanup
DISM /Online /Cleanup-Image /RestoreHealth
sfc /scannow

Once the scans are complete, restart your machine and attempt to install the update via Settings > Windows Update.

If the standard repair fails to resolve the error, you should clear the Windows Update cache and restarting the update services to force Windows to rebuild the update database. In your Command Prompt, execute these commands:

net stop wuauserv
net stop cryptSvc
net stop bits
net stop msiserver
ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
ren C:\Windows\System32\catroot2 catroot2.old
net start wuauserv
net start cryptSvc
net start bits
net start msiserver

Additionally, if you have recently added or removed any display languages, please navigate to Settings > Time & language > Language & region and ensure there are no pending language pack installations. You can then try downloading the standalone MSU package for your specific KB update directly from the Microsoft Update Catalog to bypass the built-in update agent.

If the installation continues to fail, I will need a bit more data to pinpoint the exact missing component. Please share the most recent error entries from C:\Windows\Logs\CBS\CBS.log specifically around the timestamp of the failure. Additionally, running the command below will help us see if there are any partially installed packages stuck in the system:

DISM /Online /Get-Packages /Format:Table

I will follow up on this thread to ensure that you regain access to your licenses. If this helps, please consider clicking "Accept answers" to help others with the same issues.

Official Microsoft documentation: https://learn.microsoft.com/en-us/windows-hardware/manufacture/desktop/repair-a-windows-image

KB5087539 appears to be failing during the servicing phase, not during download. Since Server 2025 is newly installed, the issue is likely tied to the servicing stack or component store corruption on certain older Dell hardware platforms.

Try the following in order:

Install the latest Servicing Stack Update manually from the Microsoft Update Catalog

Run:

DISM /Online /Cleanup-Image /RestoreHealth

sfc /scannow

Clear pending updates:

dism /online /cleanup-image /startcomponentcleanup

Reboot twice.

Attempt manual installation of the .msu package instead of Windows Update.

Also verify BIOS and firmware are current through Dell Support because older firmware has caused CBS servicing failures on recent cumulative updates.