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WU_E_SYSTEM_UNSUPPORTED
WU_E_SYSTEM_UNSUPPORTED means the required Windows Update capability is not supported by the installed version or edition of Windows. It is a compatibility result, not a fault that can be fixed by retrying the same request.
What to do
- Verify the OS edition, build, servicing level, and whether the workflow targets this platform.
- Check whether the update or API feature has documented platform requirements.
- Use an update package and servicing method supported by the current operating system.
Microsoft: Windows Update Agent API
Microsoft: WUA success and error codes
Microsoft: Windows Update error reference
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