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WU_E_UH_REMOTEALREADYACTIVE
WU_E_UH_REMOTEALREADYACTIVE means Windows Update found that a remote update handler was already active when it tried to create a new one. This often indicates overlapping install work, a stuck previous attempt, or pending reboot state.
What to check
- Make sure another update installation or uninstall operation is not already in progress.
- Reboot the machine if a previous update session did not end cleanly.
- Review the log sequence around the first handler instance to identify the operation that kept the handler active.
Microsoft: Windows Update log files
Microsoft: Windows Update issues troubleshooting
Microsoft: Windows Update error reference
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