IT Toolbox
IT Toolbox

Event ID 20 — Windows Update installation failed

TopicWindows Server →
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Windows Update did not manage to install an update.

Source of event

Microsoft-Windows-WindowsUpdateClient — category Updates.

Possible causes

  • Disk space
  • Windows Update Components
  • C-Contributed
  • Error of the Service

Verifications to be carried out

  1. Remove code of error
  2. Identify KB
  3. Control DISM/SFC and the disk space

Useful orders.

Get-WinEvent -FilterHashtable @{LogName='System'; Id=20} -MaxEvents 30

To be retained.

An Event ID must always be interpreted with its source, its full message, its timing and the context of the system. The same number may exist in several providers of events.

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