HRESULT 0x80247141 (WU_E_METADATA_UNSUPPORTED_HASH

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The metadata verifier was asked to use an unsupported hash algorithm.

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WU_E_METADATA_BAD_SIGNATURE	WU_E_METADATA_SIGNATURE_VERIFY_FAILED

WU_E_METADATA_UNSUPPORTED_HASH_ALG

WU_E_METADATA_UNSUPPORTED_HASH_ALG means the metadata specified a hashing algorithm that the Windows Update verifier does not support. This can be caused by outdated or incompatible signing configuration.

What to check

Confirm the client Windows version and its supported servicing and cryptographic capabilities.
For offline scan packages, use a current signed package; Microsoft documents that Wsusscn2.cab is signed with SHA-256 rather than dual-signed SHA-1/SHA-2.
For private update catalogs, revise the server-side signing configuration instead of weakening client validation.

Microsoft: Using WUA to scan for updates offline

Microsoft: Windows Update security

Microsoft: Windows Update error reference

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