How to read Windows Update log in Windows 10

Windows Update uses Event Tracing for Windows (ETW) to generate diagnostic logs inwards Windows 10, as well as salvage them inwards the .etl file format. The argue why this has been done, is because it reduces disk infinite usage every minute good every minute improves performance.

One fallout of this method is that, the Windows Update logs are non right away readable. You request to decode the .etl file, which is the format these logs are saved as.

Windows Update logs inwards Windows 10

To read the Windows Update logs inwards Windows 10 Preview, Microsoft suggests the next method:

1. Download Windows Symbol Package as well as install them using the method outlined here. Install these symbols to say, C:\symbols.
2. Download Tracefmt.exe tool past times next the instructions here. Tracefmt (Tracefmt.exe) is a command-line tool that formats as well as displays line messages from an number line log file (.etl) or a real-time line session. Tracefmt tin mail away display the messages inwards the Command Prompt window or salvage them inwards a text file.

Now opened upward a ascendancy prompt alongside administrative rights as well as practise a temporary folder, named %systemdrive%\WULogs. Now re-create Tracefmt.exe to this directory.

Now, Run the next commands 1 afterward the other:

cd /d %systemdrive%\WULogs

copy %windir%\Logs\WindowsUpdate\* %systemdrive%\WULogs\

tracefmt.exe -o windowsupate.log <each windows update log delimited past times space> -r c:\Symbols

The method does hold off tiresome as well as Microsoft has promised that they would amend things, inwards the in conclusion version of Windows 10. Full details tin mail away live on constitute at KB3036646.

UPDATE: Well things convey improved inwards the in conclusion version of Windows 10.

The WindowsUpdate.log is soundless located inwards C:\Windows, all the same when yous opened upward the file C:\Windows\WindowsUpdate.log, yous volition solely run into the next information:

Windows Update logs are at nowadays generated using ETW (Event Tracing for Windows).  Please operate the Get-WindowsUpdateLog PowerShell ascendancy to convert ETW traces into a readable WindowsUpdate.log.

In monastic enjoin to read the WindowsUpdate.log inwards Windows 10, yous volition request to role Windows PowerShell cmdlet to re-create the WindowsUpdate.log the agency nosotros commonly thought it.

So opened upward a PowerShell windows, type Get-WindowsUpdateLog as well as striking Enter.

You volition live on able to run into the log/s. More on this tin mail away live on constitute on TechNet.

Source: https://www.thewindowsclub.com/

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