2025-10 Cumulative Update for Windows Server 2019 (KB5066586) Undoes Update on Reboot

As the "0x8007000d (ERROR_INVALID_DATA)" error message indicates a possible system corruption, please try below steps to repair the image, if machine is connected to the internet (DISM works best when it can connect to Microsoft Update to grab any missing or corrupted files):

1. Open an elevated command prompt.
2. Type the following command, and then press Enter. It may take several minutes for the command operation to be completed: DISM.exe /Online /Cleanup-Image /RestoreHealth
3. Reboot machine and check if same error.

Otherwise, if your computer can't connect to Windows Update, you can alternatively use a working Windows installation as the repair source.

If still same issue, as a last resort, you could try identifying the invalid data and attempt to restore the files from similar Windows image in a healthy state, following guidelines in https://learn.microsoft.com/en-us/troubleshoot/windows-server/installing-updates-features-roles/error-invalid-data-startup-installing-updates

But, keep in mind that this process may be time-consuming and you might end up needing to rebuild the image after all (as described in article resolution).