HRESULT 0x8024001A (WU_E_POLICY_NOT_SET): meaning and diagnosis

Status / error code:

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Description:

A Windows Update policy value required by the operation was not configured.

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WU_E_EXCLUSIVE_INSTALL_CONFLICT	WU_E_SELFUPDATE_IN_PROGRESS

WU_E_POLICY_NOT_SET

WU_E_POLICY_NOT_SET means the operation expected a policy value that is absent. The correction is to identify the relevant policy and configure it consistently, not to guess registry values from unrelated systems.

What to check

Collect the Resultant Set of Policy to see the effective configuration on the affected machine.
Check for conflicting Group Policy and MDM policy sources.
For WSUS, verify that paired server-location and reporting settings are configured coherently.

gpresult /h %TEMP%\gpresult.html

Microsoft: Manage additional Windows Update settings

Microsoft: Configure Group Policy settings for Automatic Updates

Microsoft: WUA success and error codes

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