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WU_E_SETUP_REBOOTREQUIRED
WU_E_SETUP_REBOOTREQUIRED means the Windows Update Agent setup package reached a point where restart is required before installation can finish.
Recommended action
- Schedule or perform the reboot according to the device's maintenance window.
- After restart, verify the agent and retry the original update operation.
- Use the log to confirm whether the reboot completed the expected setup phase or exposed a separate error.
The restart is part of setup completion
This HRESULT belongs to Windows Update Agent setup and says the setup package itself requires a reboot. It should not be collapsed with a generic update result from an arbitrary KB. Deployment reporting should associate the restart requirement with the WUA setup transaction and avoid starting another agent setup while the machine is still in the pre-reboot state.
After the reboot, start a new WUA session and perform a fresh search. If setup fails again, compare the post-reboot log with the earlier trace and retain any new WU_E_SETUP_* code. Repeatedly invoking the same setup package before reboot only re-enters a state that has already declared the restart mandatory.
References
References
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