Error: Sysprep was not able to validate your Windows installation.

This Sysprep error appears to be related to Windows Update and your Reference VM. If you are experiencing this, please try the following;


  1. Start the virtual reference machine and run Windows Updates. Install all updates (Quality and Security updates only - do not install any Feature Updates/in-place upgrades which change the OS version).
  2. Restart the virtual reference machine via the Start menu
  3. Once back at the desktop, check open Windows Updates and select Pause Updates
  4. Restart the virtual reference machine
  5. Open Windows Store and check for updates and install them by clicking the dots in the top right corner
  6. Open Windows Updates and resume the updates and check for more Windows Updates and restart again if any are found
  7. Open an administrative command prompt and type: shutdown.exe /s /t 0
  8. Recapture/deploy again

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