KB5077181 Install error - 0x800f0905 on Hyper-V Windows 11 Enterprise 24H2 VM

Question

Brand new fresh build failing to install KB5077181 with Install error - 0x800f0905 on Hyper-V Windows 11 Enterprise 24H2. Host is Windows 11 Enterprise 25H2. Host did not have an issue installing KB5077181, only the Hyper-V VM is having an issue installing.

Answer 1

Hello Derek M,

The error code 0x800f0905 during installation of KB5077181 indicates a servicing stack or component store corruption inside the VM, even though the host installed the update successfully.

The first thing to confirm is that the VM has access to Windows Update services and is not restricted by WSUS or group policy. If the host is patched but the VM fails, it usually points to a mismatch in the servicing stack or a corrupted WinSxS store inside the VM. Run the following commands inside the VM:

Code

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

If DISM reports source corruption, mount the latest Windows 11 Enterprise 24H2 ISO and point DISM to the sources\install.wim file using:

Code

DISM /Online /Cleanup-Image /RestoreHealth /Source:D:\sources\install.wim /LimitAccess

Replace D: with the mounted ISO drive letter. This ensures the VM repairs its component store against a clean image.

If the repair succeeds, retry installing KB5077181. If it still fails, the next step is to manually download the update package from the Microsoft Update Catalog and apply it using wusa.exe or DISM /Add-Package. This bypasses Windows Update and forces the patch installation.

At present, there are no official Microsoft advisories stating KB5077181 is blocked on Hyper‑V guests, so the failure is most likely due to corruption or servicing stack mismatch inside the VM. If DISM and manual installation both fail, the only supported remediation is to rebuild the VM from the latest 24H2 media, which already includes the servicing stack updates required for KB5077181.

I hope you've found something useful here. If it helps you get more insight into the issue, it's appreciated to accept the answer. Should you have more questions, feel free to leave a message. Have a nice day!

Domic Vo.

Answer 2

The error code 0x800f0905 typically indicates that the system is unable to find the required files to complete the installation of the update. Here are some steps you can take to troubleshoot this issue on your Hyper-V Windows 11 Enterprise 24H2 VM:

1. Check Windows Update Settings: Ensure that your VM is properly configured to receive updates. Sometimes, settings related to Windows Update can prevent installations.
2. Run Windows Update Troubleshooter: Use the built-in troubleshooter to detect and fix issues with Windows Update. You can find this in the Settings under "Update & Security" > "Troubleshoot" > "Additional troubleshooters" > "Windows Update".
3. Verify Internet Connection: Ensure that the VM has a stable internet connection, as it may need to download additional files for the update.
4. Check Disk Space: Make sure that there is enough disk space available on the VM for the update to install.
5. Run DISM and SFC: Use the Deployment Image Servicing and Management (DISM) tool and the System File Checker (SFC) to repair any corrupted system files. You can run the following commands in an elevated Command Prompt:
   • DISM /Online /Cleanup-Image /RestoreHealth
   • sfc /scannow
6. Manual Update Installation: If the issue persists, consider downloading the update manually from the Microsoft Update Catalog and installing it directly.

If none of these steps resolve the issue, you may want to check for any specific compatibility issues or additional logs that could provide more insight into the problem.