How to Read Windows Update Logs in Windows 10
Starting with Windows 10 build 9926
, Windows Update logs are no longer saved to "%windir%\Windowsupdate.log".
Windows Update client now uses Event Tracing for Windows (ETW)
to generate diagnostic logs saved as .etl files in the "%windir%\Logs\WindowsUpdate" folder. This method improves performance and reduces disk space usage. However, the logs are not immediately readable as written.
This tutorial will show you how to read the Windows Update logs for your Windows 10
- Option One: To read Windows Update logs using PowerShell
- Option Two: To read Windows Update event logs in Event Viewer
To read Windows Update logs using PowerShell
Open an elevated PowerShell
into the elevated PowerShell, and press Enter.
When finished running, this will create a WindowsUpdate.log file on your desktop. It will take a moment to finish.
When finished, open the WindowsUpdate.log
file on your desktop to read your Windows Update logs. (see screenshot below)
The WindowsUpdate.log file is only a static log file and will not update unless you repeat this option again.
To read Windows Update event logs in Event Viewer
Open the Win+X Quick Link menu
, and click/tap on Event Viewer
In the left pane of Event Viewer, navigate to the location below, and open the Operational
log. (see screenshot below)
Applications and Service Logs\Microsoft\Windows\WindowsUpdateClient
You can now select event logs in the middle pane of Event Viewer to see their details. (see screenshot below)